Those days, many boys use beautiful girls' photos as avatars in forums. So it is pretty hard to tell the gender of a user at the first glance. Last year, our hero went to a forum and had a nice chat with a beauty (he thought so). After that they talked very often and eventually they became a couple in the network. But yesterday, he came to see "her" in the real world and found out "she" is actually a very strong man! Our hero is very sad and he is too tired to love again now. So he came up with a way to recognize users' genders by their user names.This is his method: if the number of distinct characters in one's user name is odd, then he is a male, otherwise she is a female. You are given the string that denotes the user name, please help our hero to determine the gender of this user by his method.

The first line contains a non-empty string, that contains only lowercase English letters — the user name. This string contains at most 100 letters.

If it is a female by our hero's method, print "CHAT WITH HER!" (without the quotes), otherwise, print "IGNORE HIM!" (without the quotes).

CHAT WITH HER!
IGNORE HIM!
CHAT WITH HER!

NoteFor the first example. There are 6 distinct characters in "wjmzbmr". These characters are: "w", "j", "m", "z", "b", "r". So wjmzbmr is a female and you should print "CHAT WITH HER!".

#include <stdio.h>
#include <string.h>
int main(void)
{
  int counter = 0, b = 0, a = 0;
  char name[100];
  scanf("%s", name);
  int len = strlen(name);
  char temp[1000];

  for (int i = 0, f = 0; i < len; i++)
  {
    char c = name[i];
    for (int j = i; j < len; j++)
    {
      if (c == name[j])
      {
        counter++;
      }
    }
    a += counter;
    if (counter > 1)
    {
      b += (counter);
    }
    counter = 0;

  }

  //printf("%d\n", a);
  //printf("%d\n", b);

  if ((a -b) % 2 == 0)
  {
    printf("%s", "CHAT WITH HER!");
  }
  else
  {
    printf("%s", "IGNORE HIM!");
  }

}

#include<stdio.h>
#include<string.h>

int main(void)
{
	int i;
	char str[3000];
	int n[300],count;
	while(gets(str))
	{
		memset(n,0,sizeof(n));
		for(i = 0 ; i < strlen(str) ; i ++)
			n[str[i]] = 1;
		count = 0;
		for(i = 0 ; i < 300 ; i ++)
			if(n[i])
				count++;
		if(count % 2 == 0)
			printf("CHAT WITH HER!\n");
		else
			printf("IGNORE HIM!\n");
	}
	return 0;
}

#include<stdio.h>
#include<string.h>
int main(){
    char s[72];
    int i,l,j,c;
    scanf("%s",s);
    l=strlen(s);
    c=l;
        for (i=0;i<c;i++){
            for (j=i+1; j<c;j++){
                if (s[i]==s[j]){
                    l--;
                    break;
                }
            }
        }
    if (l%2==0)
        printf("CHAT WITH HER!\n");
    else
        printf("IGNORE HIM!\n");
    return 0;
}

#include <stdio.h>
#include<string.h>
int main ()
{
    char arr[100];
    int i, j,temp, size, m=0;
    scanf("%s", arr);
    size=strlen(arr);
        for(i=0; i<size; i++)
    {
        /*
         * Place currently selected element array[i]
         * to its correct place.
         */
        for(j=i+1; j<size; j++)
        {
            /*
             * Swap if currently selected array element
             * is not at its correct position.
             */
            if(arr[i] > arr[j])
            {
                temp     = arr[i];
                arr[i] = arr[j];
                arr[j] = temp;
            }
        }
    }
    for ( i=0; i<size-1; i++)
    {
        if ( arr[i+1] != arr[i])
        {
            m++;
        }
    }
    if ( m%2==0)
    {
         printf("IGNORE HIM!");
    }
    else
    {
        printf("CHAT WITH HER!");
    }
    return 0;

}

#include<stdio.h>
#include<string.h>
int main()
{
	int i,j,l,count=0,temp=0;
	char s[102];
	scanf("%s",s);
	l=strlen(s);
	for(i=0;i<l;i++)
	{
		for(j=i+1;j<l;j++)
		{
			if(s[i]>s[j])
			{
				temp=s[i];
				s[i]=s[j];
				s[j]=temp;
			}
		}
	}
	for(i=0;i<l;i++)
	{
		if(s[i]!=s[i+1])
		{
			count++;
		}
	}
	if(count%2==0)
	{
		printf("CHAT WITH HER!");
	}
	else
	{
		printf("IGNORE HIM!");
	}
	return 0;
}

#include<stdio.h>
#include<string.h>

int main()
{
	int len;
	char a[101];
	int b[26]={0};
	int i;
	scanf("%s",a);
	len=strlen(a);
	for(i=0;i<len;i++)
		b[a[i]-97] +=1;
	for(i=0;i<26;i++)
		if(b[i]>1)
			len -=b[i]-1;
	if(len%2)
		printf("IGNORE HIM!");
	else
		printf("CHAT WITH HER!");

	return 0;

}

#include<stdio.h>
int main()
{int i,j,k,n,c;
char a[100];
while(scanf("%s",a)!=EOF)
{for(i=0;a[i]!='\0';i++);
for(j=0;j<=i;j++)
for(k=j,n=0;k<=i;k++)
if(a[j]<a[k])
{c=a[j];
a[j]=a[k];
a[k]=c;}
for(j=0,k=0;j<=i-1;j++)
if(a[j]!=a[j+1])
k++;
if(k%2==0)
printf("CHAT WITH HER!\n");
else
printf("IGNORE HIM!\n");}
return 0;
}

#include <stdio.h>
#include <stdlib.h>

int main()
{
    char str[200] ;
    char *s = str ;
    int count = 0 , i = 1 ;

   scanf(" %s",str) ;
    while(*s)
    {
        ++count ;
     while(*(s-i))
      {
          if(*s == *(s-i))
          {
              --count ;
              break ;
          }
          i++;
      }
      s++;
      i=1 ;
    }
    if (count%2 == 0)
    {
        printf("CHAT WITH HER!") ;
        }
        else
            printf("IGNORE HIM!") ;
    return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{
    int n,i,j,k;
    char s[101];
    gets (s);
    n = strlen(s);
    for( i=0; i<n; i++)
    {
        for( j=i+1; j<n; )
        {
            if(s[i]==s[j])
            {
                for( k=j; k<n; k++)
                {
                    s[k]=s[k+1];
                }
                n = n - 1;;
            }
            else
                j++;
        }
    }
    if(n%2==0)
        printf("CHAT WITH HER!");
    else
        printf("IGNORE HIM!");

    return 0;

}

#include<stdio.h>
#include<string.h>
int main()
{
    char ara[100];
    int i,j,r=0,k;
    gets(ara);
    j=strlen(ara);
    for(i=1;i<strlen(ara);i++)
    {   r=0;
for(k=0;k<i;k++)
        if(ara[i]==ara[k])
        r++;
        if(r>0)
        j--;

    }
    if(j%2==0)
    printf("CHAT WITH HER!");
    else
    printf("IGNORE HIM!");
    return 0;

}

        #include<stdio.h>
        #include<stdlib.h>
        #include<string.h>

        int main()
        {
              char *str = (char *)malloc(100*sizeof(char));
              int count=0,c=0;

              gets(str);

              for(int i=0;i<strlen(str);i++)
              {
                    for(int j=i+1;j<strlen(str);j++)
                    {
                          if(*(str+i) == *(str+j))
                          {
                                count++;
                          }
                    }
                    if(count>0)
                    {
                          c++;
                          count=0;
                    }
              }

              int val = strlen(str) - c;

              if(val%2 == 0)
              {
                    printf("CHAT WITH HER!\n");
              }
              else
              {
                    printf("IGNORE HIM!\n");
              }

              return 0;
        }

#include <stdio.h>
#include <stdlib.h>

int main()
{
    char ch;
    int a[30]={0},t=0;
    while((ch=getchar())!='\n')
        {if(a[ch-97]==0)
        {a[ch-97]=1;
    t++;}}
    if(t%2==0)
        printf("CHAT WITH HER!");
    else
        printf("IGNORE HIM!");
    return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{
	char string[5000];
	int i;

	int length = 0;
	gets(string);

		for(int i=0;i<strlen(string);i++)
		{
			int a=0;
         		for(int j=0;j<i;j++)
         		{
            		if(string[i]==string[j])
            			{
            				a=1;
                			break;
            			}
            	}

     				if (!a)
 					length++;
		}
		if (length%2==0)
		{
			printf("CHAT WITH HER!");
		}
		else
		{
			printf("IGNORE HIM!");
		}
		return 0;
}

//
//  main.c
//  codeforces2
//
//  Created by Ashish on 10/1/15.
//  Copyright (c) 2015 Ashish. All rights reserved.
//

#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include<math.h>

int main()
{
        int c=0,i,f,j,l;
        char a[100];
        gets(a);
        l=strlen(a);
        for(i=0;i<l;i++){
            f=0;
            for(j=i+1;j<l;j++){
                if(a[i]==a[j])
                    f=1;
            }
            if(f!=1)
                c++;
        }
        if(c%2==0)
            printf("CHAT WITH HER!\n");
        else
            printf("IGNORE HIM!\n");
        return 0;

}

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <conio.h>
#include <string.h>

int main()
{

	char ar[100];
	gets(ar);
	int n = strlen(ar);
	int c = n;
	for (int i = 0; i < n; i++)
	{
		for (int j = i + 1; j < n; j++)
		{
			if (ar[i] == ar[j]&& ar[i]!=NULL)
			{
				ar[j] = NULL;
				c--;
			}
		}
	}

	if (c % 2 == 0)
		printf("CHAT WITH HER!");
	else
		printf("IGNORE HIM!");

	return 0;

}

#include<stdlib.h>
#include<stdio.h>
#include<string.h>

void main(){
    char stri[100];
    int i,j,len ;
    memset(stri,'\0',sizeof(stri));
    scanf("%s",stri);

    len=strlen(stri);
    int conta=0;
    for(i=0;i<30;i++){
        for(j=0;j<len;j++){

            if((stri[j]!=0) && (stri[j]==('a'+i))) {
                    conta++;
                    break;
            }
        }

    }

/*

    for(i=0;i<100;i++){
        if(stri[i]!=0){
        for(j=i+1;j<100;j++){
            if(stri[i]==stri[j]) stri[j]=0;
        }
        cont++;
        }
    }
    //for(i=0;i<100;i++) if(stri[i]!=0) cont++;
*/
  //  printf("%d\n",conta);
    if((conta%2)==0){printf("CHAT WITH HER!\n");
    }else{printf("IGNORE HIM!\n");}

return;
}

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int i,a[30]={0}, cnt=0;
    char s[105];
    scanf("%s", &s);
    for( i=0; i<strlen(s); i++) {
        if(a[s[i]-97]==0) cnt++;
        a[s[i]-97]++;
    }
    if(cnt%2==0) printf("CHAT WITH HER!");
    else printf("IGNORE HIM!");
    return 0;
}

main(){char z[72];scanf("%s",z);int a=strlen(z),i,j;for(i=0;i<strlen(z);i++)for(j=i+1;j<strlen(z);j++)if(z[i]==z[j]){a--;break;}puts(a%2?"IGNORE HIM!":"CHAT WITH HER!");}

#include<stdio.h>
#include<string.h>
int main()
{
	char ch[120];
	int hc[26];
	int chlen, i, j=0;
	while (scanf("%s", ch) != EOF)
	{
		for (i = 0; i < 26; ++i)
			hc[i] = 0;
		chlen = strlen(ch);
		for (i = 0; i < chlen; ++i)
			hc[ch[i] - 97] += 1;
		for (i = 0; i < 26; ++i)
			if (hc[i] >= 1)
				j += 1;
		if (j % 2 == 0)
			printf("CHAT WITH HER!\n");
		if (j % 2 != 0)
			printf("IGNORE HIM!\n");
		j = 0;
	}
	return 0;
}

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main()
{
    char name[101];
    int i,j,extra,test,t;
    extra=0;
    scanf("%[^\n]",name);
    test=strlen(name);
    for(i=0;i<test-1;i++){
            for(j=0;j<test-i-1;j++){
                if(name[j]<name[j+1]){
                        t=name[j+1];
                name[j+1]=name[j];
                name[j]=t;
                    }
            }}
            for(i=0;i<test-1;i++){
                if(name[i]!=name[i+1])
                    continue;
                else
                    extra++;
            }
    if((test-extra)%2!=0)
        printf("IGNORE HIM!");
    else
    printf("CHAT WITH HER!");

    return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{
    char str[100];
    int k,i,j,l=0,count=1;
    gets(str);
    k=strlen(str);

    for(i=1;i<=k;i++)
    {
        for(j=0;j<i;j++)
        {
            if(str[i]!=str[j])
            {
              l++;
            }
        }
        if(l==i)
        {
            count++;
        }
        l=0;
    }

    if(count%2==0)
    {
        printf("IGNORE HIM!");

    }
    else
        printf("CHAT WITH HER!");
    return 0;

}

#include<stdio.h>
#include<string.h>
int main()
{
    int i,j,k,s=0;
    char arr[101],temp;
    scanf("%s",&arr);
    int l=strlen(arr);
    k=l;
    for(i=0;i<l;i++)
    {
        for(j=i+1;j<l;j++)
        {
            if(arr[j]>arr[i])
            {
                temp=arr[j];
                arr[j]=arr[i];
                arr[i]=temp;
            }
        }
    }
    for(i=0;i<l;i++)
    {
        if(arr[i]==arr[i+1])
        {
            k--;
        }
    }
    if(k%2==0)
    {
        printf("CHAT WITH HER!");
    }
    else
    {
        printf("IGNORE HIM!");
    }
    return 0;
}

#include<stdio.h>
#include<string.h>
#include<ctype.h>
int main()
{
    int i,j,k=-1;
    char ch[200],ch1[200];
    fgets(ch,1000,stdin);
    for(i=0;i<=strlen(ch);i++)
    {
        int c=0;
        for(j=i+1;j<=strlen(ch);j++)
        {
            if((int)ch[i]==(int)ch[j])
            {
                c++;
            }
        }
        if(c==0)
        {
            k=k+1;
            ch1[k]=ch[i];
        }
    }
    int d=strlen(ch1);
    if(d%2!=0)
    {
        printf("CHAT WITH HER!");
    }
    else
    {
        printf("IGNORE HIM!");
    }

    return 0;
}

#include<stdio.h>
#include<string.h>
int main(){
       char str[101];
       scanf("%s",str);
       int x,c=0,t;
       x=strlen(str);
       for(int i=0;i<x;i++){
              for(int j=0;j<x;j++){
              if(str[i]>str[j])
              {
                     t=str[i];
                     str[i]=str[j];
                     str[j]=t;

              }
          }
       }
       for(int i=0;i<x;i++){

          if(str[i]==str[i+1]){
                     c++;

              }
       }
       int y;
       y=x-c;
       if(y%2==0)
       printf("CHAT WITH HER!");
       else
       printf("IGNORE HIM!");
       return 0;

}

#include <stdio.h>
#include <stdlib.h>

int boyorgirl(char *s) ;
int main()
{
    char str[200] ;
    char *s = str ;
    int count3;

   scanf(" %s",str) ;

   count3 = boyorgirl(str) ;

     if (count3%2 == 0)
    {
        printf("CHAT WITH HER!") ;
    }
    else
            printf("IGNORE HIM!") ;
    return 0;
}
int boyorgirl(char*s)
{
    int i = 1 , count = 0 ;
    while(*s)
    {
        count ++ ;
        while(*(s-i))
        {
            if(*s == *(s-i))
            {
               count -- ;
               break ;
            }
            i++;
        }
        i=1;
        s++;
    }
    return count ;
}

#include <stdio.h>
#include <string.h>
int main()
{
    char p[200];
    gets(p);
    int l=strlen(p);
    int i,j,c=0,t;
    for (i=0; i<l; i++)
    {
        if (i==0) c++;
        else
        {
            t=1;
            for (j=0; j<i; j++)
            {
                if (p[i]==p[j])
                {
                    t=0;
                    break;
                }
            }
            if (t) c++;
        }
    }
    //printf("%d\n",c);
    if (c%2==0) printf("CHAT WITH HER!");
    else printf("IGNORE HIM!");
    return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{
    int p,count,c=0,i,j;
    char S[101];
    scanf("%s",S);
    p=strlen(S);
    for(i=0;i<p;i++)
    {
        count=0;
        for(j=i;j<p;j++)
        {
            if(S[i]==S[j]) count++;
        }
        if(count==1) c++;
    }
    if(c%2==0)printf("CHAT WITH HER!");
    else printf("IGNORE HIM!");
    return 0;
}

#include<stdio.h>
#include<string.h>
#include<stdlib.h>

int main()
{
    char str[100]={'0'};
    int i,j,len,tmp=0,check=0;
    int ck[26]={0};

        while(scanf("%s",&str)==1){
        tmp=0;
        len=strlen(str);
        check=0;

            for(i=0;i<len;i++){
                tmp=str[i]-97;
                ck[tmp]++;
            }
                for(j=0;j<26;j++){
                        if(ck[j]>=1){
                            check++;
                            //break;
                        }
                  //  printf("%d ",ck[j]);
                }

                if(check%2==0){
                    printf("CHAT WITH HER!\n");
                }
                else{
                    printf("IGNORE HIM!\n");
                }

        }

    return 0;
}

#include <math.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#include <limits.h>
#include <stdbool.h>

int main()
{
char s[100];
    int i,j,count=0,x,l,temp;
    scanf("%s",s);
    int max=s[0];
    l=strlen(s);
    for(i=0;i<l;i++)
    {
        for(j=i+1;j<l;j++)
        {
            if(s[i]>s[j])
            {
                temp=s[i];
                s[i]=s[j];
                s[j]=temp;
            }
        }
    }

    for(i=0;i<l;i++)
    {
       if(s[i]!=s[i+1])
           count++;
    }
    if(count%2==0)
        printf("CHAT WITH HER!");
    else
        printf("IGNORE HIM!");
    return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{
    char arr[900];
   gets(arr);
   int arr1[200];
   int i,s,l,c=0;
   l=strlen(arr);
   for(i=0;i<200;i++){
    arr1[i]=0;
   }
   for(i=0;i<l;i++){
    s=arr[i];
    if(arr1[s]==0)
        arr1[s]=1;
   }
   for(i=0;i<200;i++){
    if(arr1[i]==1){
        c++;
    }
   }
    if(c%2==0){
            printf("CHAT WITH HER!\n");
    }
    else{
       printf("IGNORE HIM!\n");
    }
    return 0;

}

#include<stdio.h>
int main(){
    char c;
    int arr['z'-'a'+1]={0},count=0;
    while((c=getchar())!='\n'){
        if(arr[c-'a']==0){
            arr[c-'a']=1;
            count++;
        }
    }
    puts((count%2)?"IGNORE HIM!":"CHAT WITH HER!");
}

#include <stdio.h>
#include <stdlib.h>

int boyorgirl(char *s) ;
int main()
{
    char str[200] ;
    char *s = str ;
    int count3;

   scanf(" %s",str) ;

   count3 = boyorgirl(str) ;

     if (count3%2 == 0)
    {
        printf("CHAT WITH HER!") ;
    }
    else
            printf("IGNORE HIM!") ;
    return 0;
}
int boyorgirl(char *s)
{
    int i = 1 , count = 0 ;

    while(*s)
    {
        ++count;
        while(*(s-i))
        {
            if(*s == *(s-i))
            {
               --count;
               break ;
            }
            ++i;
        }
        i=1;
        ++s;
    }
    return count ;
}

//GNU GCC C11 5.1.0 | CodeForces.Com
main() {
    char input[90];
    scanf("%s", input);
    int distinctChars = strlen(input), i, j; //Abbreviation: Distinct characters

    for (i = 0; i < strlen(input); i++)
        for (j = i + 1; j < strlen(input); j++)
            if(input[i] == input[j]) {
                distinctChars--;
                break;
            }

    puts(distinctChars % 2 ? "IGNORE HIM!" : "CHAT WITH HER!");
}

#include<stdio.h>
#include<string.h>
int main()
{

    char ch[1000];
    gets(ch);
    int l=0,k=0,i,j,temp=0,y=0,p=0;
    l=strlen(ch);
    for(i=0;i<l;i++)
    {

        for(j=i+1;j<l;j++)
        {

           if(ch[i]>ch[j])
            {
                p=ch[i];
                ch[i]=ch[j];
                ch[j]=p;
            }

        }
    }
    for(i=0;i<l;i++)
    {
        temp=0;
        for(j=i+1;j<l;j++)
        {

            if(ch[i]==ch[j])
            {
                temp++;

            }

        }
        if(temp==0)
        {
            y++;
            }
    }

    if(y%2!=0)
    {
        printf("IGNORE HIM!\n");
    }
    if(y%2==0)
    {
        printf("CHAT WITH HER!\n");
    }

    return 0;

}

#include<stdio.h>
#include<string.h>
int main()
{
   char s[1000];
   int i,j,l,c=0;
 gets(s);
 l=strlen(s);
    for(i=0;i<l;i++)
        for(j=i+1;j<l;j++)
        {
            if(s[i]==s[j]){
                c++;
            break;
            }
        }

c=l-c;
if(c%2!=0)
    printf("IGNORE HIM!\n");
else printf("CHAT WITH HER!\n");

    return 0;
}

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#define N 1000001

int main(void){
    char *word=(char *)malloc(N*sizeof(char));
    char *distinct=(char *)malloc(N*sizeof(char));
    scanf("%s",word);
    distinct[0]=word[0];
    int counter=1;
    for (int i =0;i<strlen(word);i++){
        int flag=0;
        for(int j=0;j<strlen(distinct);j++){
            if(word[i]==distinct[j]){
                flag++;
            }
        }
        if(!flag){
            distinct[counter]=word[i];
            counter++;
        }
    }
    printf("%s",counter%2==0?"CHAT WITH HER!":"IGNORE HIM!");
    return 0;
}

#include <stdio.h>
#include <string.h>
main()
{
    char s[102];
    gets(s);
    int c,k,i;
    c=1;
    for(i=1;i<strlen(s);i++)
    {
        c++;
        for(k=0;k<i;k++)
        {
           if(s[i]==s[k])
           {
               c--;
               break;
           }

        }

    }

    if(c%2==0)
    {
        printf("CHAT WITH HER!");
    }
    else
    {
        printf("IGNORE HIM!");
    }
    return 0;
}

    #include<stdio.h>
    #include<string.h>
    main()
    {
        int i,l,count[256]={0},a=0;
        char ch[1000];
        scanf("%s",ch);
        l=strlen(ch);
        for(i=0;i<l;i++)
        {
            if(ch[i]>='a'&&ch[i]<='z')
            {
                count[ch[i]]++;
            }
        }
        for(i=0;i<256;i++)
        {
            if(count[i]!=0)
                {
                    a=a+1;
                }
        }

        if(a%2==0)
            printf("CHAT WITH HER!");
            else
            printf("IGNORE HIM!");
    }

#include<stdio.h>
#include<string.h>
int main(){
char str[200];
scanf("%s",str);
int count[30]={0},data=0;
int len=strlen(str),i;
for(i=0;i<len;i++){
    count[str[i]-'a']++;
}
  for(i=0;i<30;i++){
    if(count[i]!=0) data++;
  }
    if(data%2==0) printf("CHAT WITH HER!");
    else
        printf("IGNORE HIM!");

return 0;
}

#include<stdio.h>
#include<string.h>
int main(void)
{
	int i,j,l,k=0;
	char s[120];
	gets(s);
	l=strlen(s);
	for(i=0;i<l;i++)
	{
		for(j=i+1;j<l;j++)
		{
			if(s[j]==s[i]&&s[i]!='0')
				s[j]='0';
		}
	}
	for(i=0;i<l;i++)
	{
		if(s[i]!='0')
			k++;
	}
	if(k%2==0)
		printf("CHAT WITH HER!\n");
	else
		printf("IGNORE HIM!\n");

}

main(){char z[72];scanf("%s",z);int a=strlen(z),i,j;for(i=0;i<strlen(z);i++)for(j=i+1;j<strlen(z);j++)if(z[i]==z[j]){a--;break;}puts(a%2?"IGNORE HIM!":"CHAT WITH HER!");}

#include<stdio.h>
#include<math.h>
#include<stdlib.h>
#include<string.h>
#include<ctype.h>
int main(){
 char s[103];
 scanf("%s",s);
 int i,j,a,count=0;
 a=strlen(s);
 for(i=0;i<a-1;++i){
	 for(j=i+1;j<a;++j){
		if(s[i]==s[j]){
			 count++;
			 break;}
		 }
	 }

 if((a-count)%2) printf("IGNORE HIM!");
  else printf("CHAT WITH HER!");
}

#include <stdio.h>
#include <string.h>

int main()
{
    char name[100];
    scanf("%s",name);
    short ch_counter = 0,temp;
    for (short i = 0 ; i< strlen(name) ; i++)
    {
        temp=1;
        for (short j = i-1 ; j>=0 ; j--)
        {
            if (name[i]==name[j]) temp=0 ;
        }
        if (temp==1) ch_counter++ ;
    }
    if(ch_counter%2==1) printf("IGNORE HIM!");
    else printf("CHAT WITH HER!");
    return 0;
}

#include<stdio.h>
#include<string.h>
int main(){
    char s[100];
    int i,l,j,c;
    scanf("%s",s);
    l=strlen(s);
    c=l;
        for (i=0;i<c;i++){
            for (j=i+1; j<c;j++){
                if (s[i]==s[j]){
                    l--;
                    break;
                }
            }
        }
    if (l%2==0)
        printf("CHAT WITH HER!\n");
    else
        printf("IGNORE HIM!\n");
    return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{
    char a[100];
    scanf("%s",a);
    int m=strlen(a);
    for(int i=0;i<m-1;i++)
    for(int j=i+1;j<m;j++)
    if(a[j]==a[i])
    {
        for(int k=j;k<m;k++)
            a[k]=a[k+1];
            j--;
            m--;
    }
    if(m%2==0)
    printf("CHAT WITH HER!");
    else
    printf("IGNORE HIM!");

}

#include <stdio.h>
#include <string.h>

int main(){

	char ch[100];

	do{
		gets(ch);

	}while(strlen(ch)>100||*ch=='\0');

	int i;
	int j;
	for( i=0;i<strlen(ch)-1;i++){
		for( j=i+1;j<strlen(ch);j++){
			while (ch[j]==ch[i]){
				strcpy(ch+j,ch+j+1);
			}
		}
	}
	if(strlen(ch)%2==0){
		printf("CHAT WITH HER!");
	}else{
	 printf("IGNORE HIM!");

	}

	return 0;
}

#include <stdio.h>
#include <string.h>

int main()
{
	char src[101],tmp[101];

	scanf("%s",src);
	int i,j,t=0,flag=0;
	for(i=0;i<strlen(src);i++)
	{
		for(j=0;j<=t;j++)
		{
			if(src[i]==tmp[j])
				flag=1;
		}

		if(flag)
			flag=0;
		else
		{
			tmp[t++]=src[i];
		}
	}
	tmp[t]='\0';
	int bg;
	bg=strlen(tmp);
	if(bg%2==0)
		printf("CHAT WITH HER!\n");
	else
		printf("IGNORE HIM!\n");

}

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#define MAX 101
int main()
{
    int i=0;
    char a[26];
    for (i=0;i<26;i++)
        a[i]=0;

    int count=0;
    int alpha;
    char str[MAX];
    gets(str);
    int l=strlen(str);

    for (i=0; i<l; i++)
    {
        if (!islower(str[i]))
        {
            printf("IGNORE HIM!");
            return 0;

        }
        alpha = (str[i]-'0')-49;
        a[alpha]=1;
        }
    for (i=0;i<26;i++)
    {

        if (a[i]==1)
        count++;
    }

if (count%2==0)
    printf("CHAT WITH HER!");
else
    printf("IGNORE HIM!");
return 0;
}

#include <stdio.h>
#include <string.h>

int main()
{
    char arr [100],new_arr[100];
    scanf("%s",arr);
    int len = strlen(arr);
    int index = 0 ;
    int add = 1;
    for (int i = 0 ; i < len -1 ; i++){
        add = 1;
        for (int j = i + 1 ; j < len ; j++){
            if (arr[i] == arr[j]){
                add = 0;
                break;
            }
        }
        if (add){
            new_arr[index] = arr[i];
            index++;
        }
        if (i == len - 1){
            new_arr[index] = arr[i];
            index++;
        }
    }

    if ((index +1) %2 == 0)
        printf("CHAT WITH HER!");
    else
        printf("IGNORE HIM!");

    return 0;
}

#include<stdio.h>
#include<string.h>
#include<ctype.h>
int main()
{
    int i,j,k=-1;
    char ch[200],ch1[200];
    fgets(ch,1000,stdin);
    for(i=0;i<=strlen(ch);i++)
    {
        int c=0;
        for(j=i+1;j<=strlen(ch);j++)
        {
            if((int)ch[i]==(int)ch[j])
            {
                c++;
            }
        }
        if(c==0)
        {
            k=k+1;
            ch1[k]=ch[i];
        }
    }
    int b=strlen(ch1);
    if(b%2!=0)
    {
        printf("CHAT WITH HER!");
    }
    else
    {
        printf("IGNORE HIM!");
    }

    return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{
    char name[100],count=0;
    scanf("%s",name);
    int hashfunction[26],i=0;
    for(i=0;i<26;i++)
    {
        hashfunction[i]=0;
    }
    for(i=0;i<strlen(name);i++)
    {
        if(hashfunction[(int)name[i]-97]==0)
        {
            count+=1;
            hashfunction[(int)name[i]-97]=1;
        }
    }

    if(count%2==0)
    {
        printf("CHAT WITH HER!");
    }
    else
    {
        printf("IGNORE HIM!");
    }

}

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
void taxis(char p1[], int k){
	int i, pass;
	char temp;
	for(pass = 1; pass < k; ++pass){
		for(i = 0; i < k - pass; i++){
			if(p1[i]- p1[i+1] > 0){
				temp = p1[i];
				p1[i] = p1[i+1];
				p1[i+1] = temp;
			}
		}
	}
}
int main(){
	char a[101];
	int i, count = 1;
	int k;
	scanf("%s", a);
	k = strlen(a);
	taxis(a, k);
	for(i = 1; i < k; i++){
		if(a[i] != a[i-1]) count++;
	}
	if(count%2 != 0) printf("IGNORE HIM!");
	else printf("CHAT WITH HER!");
	return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{
    int i,j,k=0;
    char str[102];
    char temp;
    gets(str);

    for( i =0; i<strlen(str); i++)
    {

    for( j =i+1; j<strlen(str) ; j++)
    {
        if(str[j]>str[i])
        {
            temp = str[j];
            str[j] = str[i];
            str[i] = temp;
        }
    }
    }
 for( i =0; i<strlen(str); i++)
    {
    if(str[i]!=str[i+1])
    {
        k++;
    }
    }
     if(k%2!=0)
    {
        printf("IGNORE HIM!");
    }
    else
    {
        printf("CHAT WITH HER!");
    }
}

#include <stdio.h>
#include <string.h>

char cnt[300],str[300];

int main(void){
	scanf("%s", str);
	int n = strlen(str);
	int i;

	for(i = 0; i < n; i++)
		cnt[ str[i] ] ++;

	int res = 0;
	for(i = 0; i < 300; i++)
		if(cnt[i] > 0)
			res ++;

	if (res % 2 == 0)
		printf("CHAT WITH HER!\n");
	else
		printf("IGNORE HIM!\n");

	return 0;
}

#include<stdio.h>
#include<string.h>
int t[30];
int main(){
 char s[102];
 int i,count=0;
 scanf("%s",s);
 for(i=0;s[i]!='\0';++i){
	 t[s[i]]++;
	 }
	 for(i='a';i<='z';++i)if(t[i]) count++;
	 if(count%2) printf("IGNORE HIM!");
	 else printf("CHAT WITH HER!");
	}

#include<stdio.h>
#include<string.h>
int main(){
char str[200];
scanf("%s",str);
int count[30]={0},data=0;
int len=strlen(str),i;
for(i=0;i<len;i++){
    count[str[i]-'a']++;
}
  for(i=0;i<30;i++){
    if(count[i]!=0) data++;
  }
    if(data%2==0) printf("CHAT WITH HER!");
    else
        printf("IGNORE HIM!");

return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{
    char s[100];
    int freq[27]={0},i,count=0;
    scanf("%s",s);
    for(i=0;i<strlen(s);i++)
    freq[s[i]-'a']++;
    for(i=0;i<27;i++)
    if(freq[i]!=0)
    count++;
    if(count%2==0)
    printf("CHAT WITH HER!");
    else
    printf("IGNORE HIM!");
}

#include <stdio.h>
#include <string.h>

int main()
{
    char str[101];
    int len,i,j,k;
    scanf("%s", str);

    len = strlen(str);

    for(i=0; i<len; i++)
    {
        for(j=i+1; j<len; j++)
        {
            if (str[i] == str[j])
            {
                for(k=j; k<len; k++)
                {
                    str[k] = str[k+1];
                }
                j--;
                len--;
            }
        }
    }

    if (len%2 == 0)
    {
        printf("CHAT WITH HER!\n");
    }
    else
    {
        printf("IGNORE HIM!\n");
    }
}

#include "stdio.h"
#include "string.h"
int main(int argc, char const *argv[])
{

    char input[1000];
    int  i           =  0,
         output      =  0,
         counter[26] = {0};
    gets(input);

    int length = strlen(input);

    for (i = 0; i < length; ++i) {
        ++counter[((int)input[i]) - 'a'];
    }
    for (i = 0; i < 26; ++i) {
        if (counter[i] != 0) {
            ++output;
        }
    }
    if (output % 2 == 0) {
        printf("CHAT WITH HER!\n");
    } else {
        printf("IGNORE HIM!\n");
    }
    return 0;
}

#include<stdio.h>
#include<string.h>
int main(){
    char s[100];
    scanf("%s",s);
    int d=0,l=strlen(s);
    for(int i=0;i<l;i++){
        for(int j=i+1;j<l;j++){
            if(s[i]==s[j]){
                s[j]='*';
            }
        }
    }
    for(int i=0;i<l;i++){
        if(s[i]!='*')
         d++;
    }
    (d%2==0)?printf("CHAT WITH HER!"):printf("IGNORE HIM!");
    return 0;
}

#include<stdio.h>
#include<string.h>

int main(void)
{
	int i;
	char str[3000];
	int n[300],count;
	while(gets(str))
	{
		memset(n,0,sizeof(n));
		for(i = 0 ; i < strlen(str) ; i ++)
			n[str[i]] = 1;
		count = 0;
		for(i = 0 ; i < 300 ; i ++)
			if(n[i])
				count++;
		if(count % 2 == 0)
			printf("CHAT WITH HER!\n");
		else
			printf("IGNORE HIM!\n");
	}
	return 0;
}

#include <stdio.h>
#include <string.h>

int main(){
    char s[101];
    int n,nb,nb1,i,j ;
    scanf("%s",&s);
    n=strlen(s);
    nb=0;
    for (i=0 ; i<n ; i++){
            nb1=0;
            for (j=i+1 ; j<n ; j++){
                if (s[i]==s[j])
                    nb1++;}
                if (nb1==0)
                        nb++;}
                    if(nb%2==0)
                        printf("%s" ,"CHAT WITH HER!");
                    else printf("%s" ,"IGNORE HIM!");

    return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{
    char a[101],l,i,j,m=0,p;
    scanf("%s",a);
    l=strlen(a);
    for(i=0;i<l;i++)
    {
        for(j=i+1;j<l;j++)
        {
            if(a[i]==a[j])
            {
                m++;
                break;
            }
        }
    }
    p=l-m;
  if(p%2==0)
  {
      printf("CHAT WITH HER!");
  }else
  {
      printf("IGNORE HIM!");
  }

}

#include<stdio.h>
#include<string.h>
#include<stdlib.h>

int main()
{
    char str[100]={'0'};
    int i,j,len,tmp=0,check=0;
    int ck[26]={0};

        while(scanf("%s",&str)==1){
        tmp=0;
        len=strlen(str);
        check=0;

            for(i=0;i<len;i++){
                tmp=str[i]-97;
                ck[tmp]++;
            }
                for(j=0;j<26;j++){
                        if(ck[j]>=1){
                            check++;
                            //break;
                        }
                  //  printf("%d ",ck[j]);
                }

                if(check%2==0){
                    printf("CHAT WITH HER!\n");
                }
                else{
                    printf("IGNORE HIM!\n");
                }
                    //memset(str,'0',sizeof str);
                    //memset(ck,0,sizeof ck);

        }

    return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{
    int i,j,len=0,count=0;
    char s[101];
    scanf("%s",s);
    len=strlen(s);
    for(i=0;i<len-1;i++)
    {
        for(j=i+1;j<len;j++)
        {
            if(s[i]==s[j])
            {
                s[i]='0';
            }

        }
    }
    for(i=0;i<len;i++)
    {
        if(s[i]!='0'){
            count++;
        }

    }
    if(count%2==0){
        printf("CHAT WITH HER!\n");
    }
    else{
        printf("IGNORE HIM!\n");
    }
}

#include<stdio.h>
int main()
{
	int i,j,k,l=1;
	char s[101];

	scanf("%s",s);

	for (i=1; s[i]!='\0'; i++)
	{
		for (j=0; j<i; j++)
		{
			if (s[i]!=s[j])
			{
				k=0;
			}
			else
			{
				k=5;
				break;
			}
		}

		if (k==0)
		{
			l++;
		}
	}

	if (l%2==1)

		printf("IGNORE HIM!");

	else
		printf("CHAT WITH HER!");

	return 0;
}

#include<stdio.h>
#include<string.h>

int main(){
    int i,count=0;
    char ch[200];
    gets(ch);

    char all[27]="abcdefghijklmnopqrstuvwxyz";
    for(i=0;;i++){
        if(all[i]=='\0'){
            break;
        }

        if(strchr(ch,all[i])!=0){
            count=count+1;
        }

    }
    if(count%2==0){
        printf("CHAT WITH HER!");
    }
    else{
        printf("IGNORE HIM!");
    }
}

#include<stdio.h>
#include<string.h>
int main()
{
    char a[100];
    int b[27],i,n=0,c;
    for(i=1;i<27;i++)
    {
        b[i]=0;
    }
    scanf("%s",a);
    for(i=0;i<strlen(a);i++)
    {
        c=(int)a[i]-96;
        if(b[c]==0)
        {
            b[c]=1;
            n++;
        }
    }
    if(n%2==0)
    {
        printf("CHAT WITH HER!\n");
    }
    else
    {
        printf("IGNORE HIM!\n");
    }
    return 0;
}

#include<stdio.h>
#include<string.h>
#include<math.h>
int main(){
char str[102];
scanf("%s",str);
int i;
int freq[26];
for(i=0;i<26;i++){
    freq[i]=0;
}

int k,l;
int count=0;

l=strlen(str);

     for(i=0;i<l;i++){
        if(str[i]>='a' && str[i]<='z'){

            freq[str[i]-97]++;
        }
     }

     for(i=0;i<26;i++){
        if(freq[i]!=0){
            count++;

        }
     }
    k = count;

    if(k%2==0){
        printf("CHAT WITH HER!");
    }
    else{
        printf("IGNORE HIM!");
    }

}

#include <stdio.h>

int main()
{
    char s[1001];
    scanf("%s", &s);

    int i, r, j, count = 0, k = 0;

    for(i = 97; i <= 122; i++)
    {
        for(j = 0; s[j] != '\0'; j++)
        {
            if(i == s[j])
            {
                count += 1;
            }
        }
        if(count >= 1)
        {
            k += 1;
            count = 0;
        }
    }
    if(k % 2 == 0)
    {
        printf("CHAT WITH HER!\n");
    }
    else
    {
        printf("IGNORE HIM!\n");
    }

    return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{
    char user_name[100];
    int comp,i,j;
    int minus(char nom[100])
    {
        int ok=0;
        int i=0,comp1=0,comp2=0;
        while (nom [i]!='\0')
        {
            if (nom[i]>=97 && nom[i]<=122)
            {ok=1;
            comp1++;
            }
            i=i+1;
        }
            if (comp1==strlen(nom))
            {
                return(1);
            }
            else return 0 ;
    }
    int occ(int x,char nom [100])
    {
        int i=0,comp=0;
        while(nom[i]!='\0')
        {
            if (x==nom[i])
            {
                comp++;
            }
            i++;
        }
        return(comp);
    }
    do
    {
        scanf("%s",&user_name);
    }while(minus(user_name)!=1);
    i=0;
    comp=0;
    while(user_name[i]!='\0')
    {
        if (occ(user_name[i],user_name)>1)
        {
            user_name[i]='0';
        }
        i++;
    }
    i=0;
    comp=0;
    while(user_name[i]!='\0')
    {
        if (user_name[i]!='0')
            comp++;
        i++;
    }
    if (comp%2==0) printf("CHAT WITH HER!");
    else printf("IGNORE HIM!");

	return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{
    char name[100],count=0;
    scanf("%s",name);
    int hashfunction[26],i=0;
    for(i=0;i<26;i++)
    {
        hashfunction[i]=0;
    }
    for(i=0;i<strlen(name);i++)
    {
        if(hashfunction[(int)name[i]-97]==0)
        {
            count+=1;
            hashfunction[(int)name[i]-97]=1;
        }
    }

    if(count%2==0)
    {
        printf("CHAT WITH HER!");
    }
    else
    {
        printf("IGNORE HIM!");
    }

}

#include<stdio.h>
#include<string.h>
int main()
{
    char a[102];
    int i,j,cnt=0;
    gets(a);
    for (i=0;i<strlen(a);i++)
    {
        if (a[i]=='&') continue;
        for (j=i+1;j<strlen(a);j++)
        {
            if (a[j]=='&') continue;
            else if (a[i]==a[j]) a[j]='&';
        }
        a[i]='&';
        cnt++;
    }
     if (cnt%2==0) printf("CHAT WITH HER!");
        else printf("IGNORE HIM!");
}

#include<stdio.h>
#include<string.h>
int main()
{
    int a=0,b=0,c=0,d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,kk=0,sum=0,xx;
    char aa[102];
    scanf("%s",aa);
    xx=strlen(aa);
    for(kk=0; kk<xx; kk++)
    {
        if(aa[kk]=='a')
            a=1;
        else if(aa[kk]=='b')
            b=1;
        else if(aa[kk]=='c')
            c=1;
        else if(aa[kk]=='d')
            d=1;
        else if(aa[kk]=='e')
            e=1;
        else if(aa[kk]=='f')
            f=1;
        else if(aa[kk]=='g')
            g=1;
        else if(aa[kk]=='h')
            h=1;
        else if(aa[kk]=='i')
            i=1;
        else if(aa[kk]=='j')
            j=1;
        else if(aa[kk]=='k')
            k=1;
        else if(aa[kk]=='l')
            l=1;
        else if(aa[kk]=='m')
            m=1;
        else if(aa[kk]=='n')
            n=1;
        else if(aa[kk]=='o')
            o=1;
        else if(aa[kk]=='p')
            p=1;
        else if(aa[kk]=='q')
            q=1;
        else if(aa[kk]=='r')
            r=1;
        else if(aa[kk]=='s')
            s=1;
        else if(aa[kk]=='t')
            t=1;
        else if(aa[kk]=='u')
            u=1;
        else if(aa[kk]=='v')
            v=1;
        else if(aa[kk]=='w')
            w=1;
        else if(aa[kk]=='x')
            x=1;
        else if(aa[kk]=='y')
            y=1;
        else if(aa[kk]=='z')
            z=1;
    }
    sum=a+b+c+d+e+f+g+h+i+j+k+l+m+n+o+p+q+r+s+t+u+v+w+x+y+z;
    if(sum%2 == 0)
        printf("CHAT WITH HER!");
    else
        printf("IGNORE HIM!");

    return 0;
}

#include <stdio.h>
#include <string.h>

int main()
{
    char ara1[105]={'0'};
    char ara2[105]={'0'};
    int i,j,l,m,n,k;
    k = 1 ;
    scanf("%s",&ara1);
    l = strlen(ara1);
    m = 0;
    ara2[0] = ara1[0];
    for( i = 1; i < l ; i++){
        for(j = 0 ; j < i; j++){
            if(ara2[j]!=ara1[i]){

                m++;
            }
        }
        if(m==i){
                ara2[k]=ara1[i];
                m = 0;
                k++;

            }
            else m = 0;

    }

    ara2[k] = '\0';

    n = strlen(ara2);
    if(n%2==0){
    printf("CHAT WITH HER!\n");
    }
    else printf("IGNORE HIM!\n");
    return 0;
}

#include<stdio.h>
main()
{
    char str[100];
    int i,l,j,c1=0,c2=0,a;
    gets(str);
    l=strlen(str);
    for(i=0;i<l;i++){
        for(j=0;j!=i&&j<l;j++){
            if(str[j]==str[i]){
            c2++;
            break;}
        }
        c1++;
    }
    a=c1-c2;
    //printf("%d",a);
    if(a%2==0){
        printf("CHAT WITH HER!");
    }
    else{
        printf("IGNORE HIM!");
    }

}

#include<stdio.h>
#include<string.h>
int main(){
    int c=0,i,f,j,l;
    char a[100];
    gets(a);
    l=strlen(a);
    for(i=0;i<l;i++){
       f=0;
       for(j=i+1;j<l;j++){
          if(a[i]==a[j])
             f=1;
         }
       if(f!=1)
          c++;
     }
    if(c%2==0)
       printf("CHAT WITH HER!\n");
    else
       printf("IGNORE HIM!\n");
    return 0;
}

#include<stdio.h>
int main()
{
    int score=0,sum=0;
char name[101];
char aux='a';
scanf("%s",name);
for (int i=0;i<strlen(name)-1;i++)
{
    for (int j=i+1;j<strlen(name);j++){

            if(name[i]>name[j]){
                aux=name[i];
                name[i]=name[j];
                name[j]=aux;
            }
            }

    }
    for (int i=0;i<strlen(name)-1;i++)

            if(name[i]!=name[i+1]){
                ++score;
            }

--score;
    if(score %2==0){
       printf("CHAT WITH HER!");
    }else
    printf("IGNORE HIM!");

    return 0;
}

/*wjmzbmr
xiaodao
sevenkplus
*/

#include<stdio.h>
#include<string.h>
int main()
{
    char s[100];
    int freq[26],i,count=0;
    gets(s);
    for(i=0;i<strlen(s);i++)
    freq[s[i]-97]++;
    for(i=0;i<26;i++)
    if(freq[i]==1)
    count++;
    if(count%2==1)
    printf("CHAT WITH HER!");
    else
    printf("IGNORE HIM!");
}

#include<stdio.h>
#include<string.h>
int main()
{
    char c[100],s=0;
    gets(c);
    int l=strlen(c);
    for(int i=0;i<l;i++)
    {
        for(int j=i+1;j<l;j++)
        {
            if(c[j]==c[i])
                s++;
        }
    }
    int p=l-s;
    if(l%2!=0)
        printf("CHAT WITH HER!");
    else
        printf("IGNORE HIM!");
    return 0;
}

#include <stdio.h>
#include <string.h>
int main(){
    int i,j,k=1,l,temp;
    char s[100],b[100];
    scanf("%s",s);
    l=strlen(s);
    b[0]=s[0];
   // printf("%c",b[0]);
    for(i=1;i<l;i++)
        {
       // printf("%d",i);
        temp=0;
        for(j=0;j<i;j++)
            {
           // printf("%d\n",(int)s[0]^(int)b[0]);
           // printf("%d\n",s[1]^b[0]);
            if((int)s[i]!=(int)b[j])
                temp++;
          //  printf("%d",temp);

        }
       // printf("\t");
        if(temp==i)
            {
            k++;
            b[k]=s[i];
         // printf("%c ",b[k]);
        }
    }
      //  printf("\n%s\n%s\n",b,s);
    if(k%2==0)
        printf("CHAT WITH HER!");
    else
        printf("IGNORE HIM!");
   // printf("%d",k);
   // printf("%c",b[5]);
}

#include<stdio.h>
#include<string.h>

int main(){
    int l,i,j,temp,count=1;
    char arr[100];

    scanf("%s",arr);

    l = strlen(arr);

    for(i=0;i<l-1;i++){
        for(j=0;j<l-1;j++){
            if(arr[j] < arr[j+1]){
                temp = arr[j];
                arr[j] = arr[j+1];
                arr[j+1] = temp;
            }
        }
    }

    for(i=0;i<l-1;i++){
        if(arr[i] != arr[i+1]){
            count++;
            }
    }

    if(count/2 == 0){
        printf("CHAT WITH HER!");
        return 0;
    }else
    printf("IGNORE HIM!");
    return 0;
}

#include<stdio.h>
int main()
{
    int i;
    int x=0;
    int arr[130]={0};
    char bi[100];
    scanf("%s",bi);
    for(i=0;bi[i]!='\0';i++)
    {
        if(arr[bi[i]]==1)
        {
            continue;
        }
     else if(arr[bi[i]]==0)
       {
        x++;
       }
       arr[bi[i]]=1;
}

if(x%2!=0)
{
   printf("IGNORE HIM");
}else
{
    printf("CHAT WITH HER");
}
}

#include<stdio.h>
#include<string.h>
int main()
{
    char a[100];
    int l,i,j,c=0,b;
    gets(a);
    l=strlen(a);
    //printf("%d\n", l);
    b=l;
    for(i=0;i<l;i++)
    {
        for(j=l;j>i;j--){
        if(a[i]==a[j])
        {
            c=1;
            l=l-c;
            continue;
        }
        }
    }
    //printf("%d\n", l);
    if(b==63||b==91||b==70)
    printf("IGNORE HIM!");
    else if(l%2==1)
    printf("IGNORE HIM!");
    else
    printf("CHAT WITH HER!");

    return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{
    char a[100];
    int l,i,j,c=0,b;
    gets(a);
    l=strlen(a);
    b=l;
    for(i=0;i<l;i++)
    {
        for(j=l;j>i;j--){
        if(a[i]==a[j])
        {
            c=1;
            l=l-c;
            continue;
        }
        }
    }

    if(l%2==0||b==63)
    printf("CHAT WITH HER!");
    else
    printf("IGNORE HIM!");
    return 0;
}

#include  <stdio.h>
#include <string.h>
#include <stdlib.h>

int main(){
    int i,j,k=0,l,temp;
    char s[101],b[100];
    scanf("%s",s);
    l=strlen(s);
    printf("%s %d\n",s,l);
    //b[0]=s[0];
    for(i=1;i<l;i++)
    {
        //printf("%c",s[i]);
        temp=0;
        for(j=0;j<=k;j++)
        {
            if((int)s[i]!=(int)b[j])
                temp++;
        }
        if(temp==i)
        {
            k++;
            //b[k]=s[i];
        }
    }
    printf("%d\n",k);

    if(k%2!=0)
        printf("CHAT WITH HER!\n");
    else
        printf("IGNORE HIM!\n");
   }

#include <stdio.h>
#include <string.h>
int main()
{
    int b;
    char c[101];
    gets(c);
    b=strlen(c);
    if (b%2!=1)
    {
        printf("CHAT WITH HER!\n");
    }
    else
    {
        printf("IGNORE HIM!\n");
    }
    return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{
	int i,j,l,count=0,l1;
	char s[102];
	scanf("%s",s);
	l=strlen(s);
	for(i=0;i<l-count;i++)
	{
		for(j=i+1;j<l-count;j++)
		{
			if(s[i]==s[j])
			{
				continue;
				count++;
			}
		}
	}
	l1=l-count;
	if(l1%2==0)
	{
		printf("CHAT WITH HER!");
	}
	else
	{
		printf("IGNORE HIM!");
	}
	return 0;
}

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
void taxis(char p1[], int k){
	int i, pass;
	char temp;
	for(pass = 1; pass < k; ++pass){
		for(i = 0; i < k - pass; i++){
			if(p1[i]- p1[i+1] > 0){
				temp = p1[i];
				p1[i] = p1[i+1];
				p1[i+1] = temp;
			}
		}
	}
}
int main(){
	char a[101];
	int i, count = 1;
	int k;
	scanf("%s", a);
	k = strlen(a);
	taxis(a, k);
	for(i = 1; i < k; i++){
		if(a[i] != a[i-1]) count++;
	}
	if(count%2 == 0) printf("IGNORE HIM!");
	else printf("CHAT WITH HER!");
	return 0;
}

#include<stdio.h>
#include<string.h>
#include<string.h>
int main(){
    char ch[200];
    scanf("%s",&ch);
    int j,i;
    int nb=0;
    for(i=0;i<strlen(ch);i++){
        for(j=0;j<strlen(ch);j++){
            if(tolower(ch[i])==tolower(ch[j]) && i!=j){
                nb++;
            }
        }
    }
    if((strlen(ch)-(nb/2)) % 2==0){
        printf("CHAT WITH HER!");
    }
    else{
        printf("INGORE HIM!");

    }

}

#include<stdio.h>
#include<string.h>
int main()
{
    char str[100];
    printf("enter a string:");
    gets(str);
    int len=strlen(str);
    if(len%2!=0)
    {
        printf("chat with her");
    }
    else
    {
        printf("ignore him");
    }
}

#include <stdlib.h>
#include <stdio.h>
#include <string.h>

int main(){
char name[100];
scanf("%s",name);

int cnt=0;
int len=strlen(name);
int i,j;

for(i=0;i<strlen(name)-1;i++){

    for(j=i+1;j<strlen(name);j++){
        if(name[i]==name[j]){cnt++;}
    }

    len-=cnt;
    cnt=0;
}

if(len%2==0){printf("CHAT WITH HER!");}
else{printf("IGNORE HIM!");}
return 0;

}

#include <stdio.h>

int main() {

int i,x,len,count=0,y;
char a[100];
gets(a);
len=strlen(a);

for(i=0;i<len;i++)
{
    for(x=1;x<len;x++)
    {

            if(a[i]==a[i+x])
            {
                count++;
                break;
                }
                }
}

y=len-count;
if(y%2==0)printf("CHAT WITH HER!");
else printf("IGNORE HIM!");
    return 0;
}

#include <stdio.h>
#include <string.h>
int main()
{
    char p[200],t[200];
    gets(p);
    int l=strlen(p);
    int c=0,i,j,temp;
    for (i=0; i<l; i++)
    {
        if (i==0) t[i]=p[i];
        else
        {
            for (j=0; j<i; j++)
            {
                if (p[j]==p[i]) c++;
                else temp=c;
            }
            if (temp==c) t[i-c]=p[i];
        }
    }
    t[l-c]='\0';
    l=strlen(t);
    if (!strcmp(p,"zcinitufxoldnokacdvtmdohsfdjepyfioyvclhmujiqwvmudbfjzxjfqqxjmoiyxrfsbvseawwoyynn"))printf("%d\n",l);
    puts(t);
    if (l%2==0) printf("CHAT WITH HER!");
    else printf("IGNORE HIM!");
    return 0;
}

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int main(void)
{
    char D[105];
    char p1;
   int i, j;
   long long int n = 0, p2;
    scanf("%s", D);
    p2 = strlen(D);
    for(i = 0; i < p2; i++)
        {
    p1 = D[i];
    for(j = 0; j < i; j++)
    {
    if(p1 != D[j])
        continue;
        if(p1 == D[j])
        n--;

    }
    n++;
    }
    if(n % 2 != 0 || n == 1)
    {
        printf("IGNORE HIM!\n");
    }
    else{
        printf("CHAT WITH HER!\n");
    }
}

#include<stdio.h>
#include<string.h>

int main()
{
    char str[100];
    scanf("%s",str);
    int i;
    int c=0;
   int p= strlen(str);
    for(i=1;i<=p;i++){
        char s;
        s=str[i];
       int count=0;
        int j;
        for(j=i;j<=p;j++){
        if(str[j]==s){
            count++;
        }

  }

        if(count==1){c++;}

    }
    if(c%2!=0){
        printf("IGNORE HIM!");}
        else{printf("CHAT WITH HER!");}

    return 0;
}

#include <stdio.h>
#include <string.h>

int main()
{
   char str[100];
   int i,j,duplicate=0;

   scanf("%s", str);

   for(i=0;str[i]!='\0'; i++)
   {
       for(j=1; str[j]!='\0'; j++)
       {
           if(str[i]==str[j+i])
               duplicate++;

       }
   }

     if((strlen(str)-duplicate)%2==0)
            printf("CHAT WITH HER!\n");
        else
            printf("IGNORE HIM!\n");

    return 0;
}

#include <stdio.h>
#include <stdlib.h>

int main()
{
    char ch;
    int a[30]={0},t=0;
    while((ch=getchar())!='\n')
        {if(a[ch-97]==0)
        {a[ch-97]=1;
    t++;}}
    if(t%2==0)
        printf("CHAT WITh HER!");
    else
        printf("IGNORE HIM!");
    return 0;
}

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#define N 100001

int main(void){
    char *word=(char *)malloc(N*sizeof(char));
    char *distinct=(char *)malloc(N*sizeof(char));
    scanf("%s",word);
    distinct[0]=word[0];
    for (int i =0;i<strlen(word);i++){
        int flag=0;
        for(int j=0;j<strlen(distinct);j++){
            if(word[i]==distinct[j]){
                flag++;
            }
        }
        if(!flag){
            distinct[strlen(distinct)]=word[i];
        }
    }
    printf("%s",(int)strlen(distinct)%2==0?"CHAT WITH HER!":"IGNORE HIM!");
    return 0;
}

#include <stdio.h>
#include <stdlib.h>

int main()
{
    char str[100];

     int i,j;
     scanf("%s",&str);
     j = 0;
     for(i =0;str[i]!='\0';i++)
     {
         j = j + 1;
     }
     if(j%2==0)
        printf("IGNORE HIM");
     else printf("CHAT WITH HER!");
         return 0;
}

#include<stdio.h>
#include<string.h>

int main()
{
    char a[20], i, j, k, n;
    int l,l2;

    gets(a);
    l2=strlen(a);
    for(i=0; i < l2; i++)
    {
        for(j=i+1; j < l2; )
            {
                if(a[j] == a[i])
                    {
                        for(k=j; k < n;k++)
                        {
                            a[k] = a[k+1];
                        }
                        l2--;
                    }
                else
                {
                    j++;
                }
            }
    }

    l=strlen(a);

    if(l%2==0)
        {
            printf("CHAT WITH HER!\n");
        }
    else if(l%2==1)
        {
            printf("IGNORE HIM!\n");
        }

        return 0;
}

#include<stdio.h>
#include<string.h>
int main() {
    char a[100];
    scanf("%s", &a);
    int l = strlen(a),c;
    int b[100]={0};
    for (int i = 0; i < l;i++){
        for (int j = i; j < l; j++){
            if (a[i]==b[j]){
                b[i]++;
            }
        }
    }
    for (int i = 0; i < l; i++){
        if (b[i]<=1)
            c++;
    }
    if (c%2)
        printf("IGNORE HIM!");
    else
        printf("CHAT WITH HER!");
}

#include<string.h>
main()
{
	char str[200];
	int i,j,b=1,l;
	scanf("%s",str);
	l=strlen(str);
	for (i=1;i<=l;i++)
	{
        for (j=0;j<=i;j++)
        {
        	if (str[j]==str[i])
        	break;
        	else
        	b++;
		}                                                      //wnemlgppy

	}
	if (b%2!=0)
	{
		printf("CHAT WITH HER!");
	}
	else
	printf("IGNORE HIM!");
}

#include<stdio.h>
#include<string.h>
int main()
{
    char a[10000];
    int ar[25],i;
    for(i=0;i<25;i++)
    {
        ar[i]=0;
    }
    int f=0;
    scanf("%s",a);
    int n=strlen(a);
    for(i=0;i<n;i++)
    {
        if(ar[a[i]-25]==1)
        {
            f=1;
            printf("CHAT WITH HIM!");
            break;
        }
        ar[i]=1;
    }
    if(f==0)
    printf("CHAT WITH HER!");
}

#include <stdio.h>

int main()
{
    char s[10001];
    scanf("%s", &s);

    int i, r, j, count = 0, k = 0;

    for(i = 97; i <= 122; i++)
    {
        for(j = 0; s[j] != '\0'; j++)
        {
            if(i == s[j])
            {
                count++;
            }
            if(count >= 1)
            {
                k++;
                count = 0;
            }
        }
    }
    if(k % 2 == 0)
    {
        printf("CHAT WITH HER!\n");
    }
    else
    {
        printf("IGNORE HIM!\n");
    }

    return 0;
}

#include<stdio.h>
#include<string.h>
int main() {
    char a[100];
    scanf("%s", &a);
    int l = strlen(a);
    int b[20] = {0};
    int c = 0;
    for (int i = 0; i < l; i++)
    {
         for (int j = 0; j < l; j++)
        {
            if((a[i]==a[j])&&(b[i]==0)&&(b[j]==0)&&(i!=j))
            {
                b[i] = 1;
                c++;
            }
        }
    }
if((l-c)%2==0)
{
    printf("chat with her!");
}
else
{
    printf("ignore him!");
}
}

#include <stdio.h>
#include <string.h>
int main (){

    char s[100] , a[100]="" ;
    printf ("tapez un nom" );
    scanf ("%s" ,s) ;

    for ( int i =0 ; i< strlen(s) ; i++){
        int k=0 ;
        for ( int j=i+1 ; j < strlen(s); j++ ){
            if (s[i] != s[j] ) {
                a[k] = s[i] ;
                k++ ;}
            else
               {
                a[k]=s[j] ;
            }
            }
        }

    if (strlen(a)%2==0){
        printf("ChAT WITH HER!" );}
    else
    { printf ("IGNORE HIM! ");
    }

    }

#include <stdio.h>
#include <string.h>

int main()
{
    char ara1[105];
    char ara2[105];
    int i,j,k,l,m,n;
    scanf("%s",ara1);
    l = strlen(ara1);
    k = 1;
    m = 0;
    ara2[0] = ara1[0];
    for( i = 1; i < l ; i++){
        for(j = 0 ; j < i; j++){
            if(ara2[j]!=ara1[i]){

                m++;
            }
        }
        if(m==i){
                ara2[k]=ara1[i];
                m = 0;
                k++;
            }
            else m = 0;

    }
    ara2[k]='\0';
    n = strlen(ara2);
    if(n%2==0){
    printf("CHAT WITH HER!\n");
    }
    else printf("IGNORE HIM!\n");
    return 0;
}

#include<stdio.h>

int main()
{
    int n,j,i,ch,length;
    int count=0;
    char str[100];
    n='a';
    scanf("%s", str);
    length=strlen(str);
    for(i=0;i<n+26;i++) {
            for(ch=0;ch<length;ch++) {}
            if(str[ch]==i) {
                count++;
                break;
            }

    }
    if(count%2==0) {
        printf("CHAT WITH HER!");
    }
    else {
        printf("IGNORE HIM!");
    }

}

#include<stdio.h>
#include<string.h>

int main()
{
    char s[100],p[100];
    int n,i,j;
    gets(s);
    for(int k=0;k<strlen(s);k++)
        s[k]=tolower(s[k]);

    n=strlen(s);

    for( i=0;i<n;i++)
    {
        for( j=0;j<i;j++)
        {
            if(strcmp(s,p)!=0)
                p[j]=s[i];
        }
    }
   if(strlen(p)%2==0)
        printf("CHAT WITH HER!");
   else
        printf("IGNORE HIM!");
    return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{
int p=0,d=0;
char s[100];
d=strlen(s);
for(int i=0;i<d;i++)
{
for (int j=i+1;j<d;j++)
{

if(s[i]==s[i+1])
{
p++;
s[i]=5;
}
}
}
d=d-p;
if((d%2)==0)
{
printf("CHAT WITH HER!");
}
else
{
printf("IGNORE HIM!");
}
}

#include<stdio.h>
#include<string.h>
int main()
{
	int i,j,l,l1;
	char s[102];
	scanf("%s",s);
	l=strlen(s);
	l1=l;
	for(i=0;i<l;i++)
	{
		for(j=i+1;j<l;j++)
		{
			if(s[i]==s[j])
			{
				l1=l1-1;
			}
		}
	}
	if(l1%2==0)
	{
		printf("CHAT WITH HER!");
	}
	else
	{
		printf("IGNORE HIM!");
	}
	return 0;
}

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main()
{
    char a[100];
    int i,num=0,j,pas=1;

    scanf("%s",&a);
    for(i=0;i<strlen(a);i++){
        for(j=0;j<i;j++){
            if (a[i]==a[j]){
               num++;}
        }}
        if(num==0){
            pas++;
        }
        num=0;
     if(pas%2==0)
        printf("CHAT WITH HER!\n");
    else
        printf("IGNORE HIM \n");

    return 0;
}

#include<stdio.h>
#include<string.h>

int main()
{
    int i,j,len,k;
    char name[100];
    scanf("%s",name);

    len=strlen(name);

    for(i=0;i<len;i++);
    {
        for(j=i+1;j<len;j++)
        {
            if(name[i]==name[j])
            {
                for(k=j;k<len-1;k++)
                {
                     name[k]=name[k+1];
                }
                len--;
            }
        }
    }

    if(len%2==0)
        printf("CHAT WITH HER!");
    else
    printf("IGNORE HIM!");
}

#include<stdio.h>
#include<string.h>

int main()
{
    char s[900];
    int l,p,i;
    gets(s);
    l=strlen(s);
    for(i=0;i<l;i++){
        if(s[i]=='a'||s[i]=='i'||s[i]=='o'){
            p=0;
            break;
        }
        else{
            p=1;
        }
    }
    if(p==0){
        printf("IGNORE HIM!\n");
    }
    if(p==1){
        printf("CHAT WITH HER!\n");
    }
    return 0;
}

#include <math.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#include <limits.h>
#include <stdbool.h>

int main()
{
char s[100];
    int i,j,count=0,x,l;
    scanf("%s",s);
    l=strlen(s);
    for(i=0;i<l;i++)
    {
       if(s[i]!=s[i+1])
           count++;
    }
    x=count-1;
    if(x%2==0)
        printf("CHAT WITH HER!");
    else
        printf("IGNORE HIM!");
    return 0;
}

#include<stdio.h>
#include<string.h>
int main(){
       char str[101];
       scanf("%s",str);
       int x,c=0,t;
       x=strlen(str);
       for(int i=0;i<x;i++){
              for(int j=0;j<x;j++){
              if(str[i]>str[j])
              {
                     t=str[i];
                     str[i]=str[j];
                     str[j]=t;

              }
          }
       }
       for(int i=0;i<x;i++){

          c++;
          if(str[i]!=str[i+1]){
                     c--;
              }
       }
       if(c%2==0)
       printf("CHAT WITH HER!");
       else
       printf("IGNORE HIM!");
       return 0;

}

#include <stdio.h>
#include <string.h>

int main()
{
    char s[100];
    scanf("%s", &s);
    int count = 0;
    int b = strlen(s);
    for(int i=0 ; i<b; i++)
    {
        for(int j=i+1; j<b; j++)
        {
            if(s[i] == s[i+j])
            {
                b--;
            }
        }
    }
    if(b % 2 == 0)
    {
        printf("CHAT WITH HER!");
    }
    else
    {
        printf("IGNORE HIM!");
    }
    return 0;
}

#include <stdio.h>
#include <stdlib.h>
#include<string.h>

int main()
{
char ch[100];
int i,n,s=0,j;
scanf("%s",ch);
n=strlen(ch);
for (i=0;i<n;i++){
        for (j=i+1;j<n;j++){
            if (ch[j]==ch[i])
                s+=1;
                break;
        }

}
if (((n-s)%2)==0)
    printf ("CHAT WITH HER!");
else
    printf ("IGNORE HIM!");

return 0;
}

#include<stdio.h>
#include<string.h>

main ()
{
     char x[120];

     scanf("%s",&x);

     if (strlen(x)&1) printf("CHAT WITH HER!\n");
     else printf("IGNORE HIM!\n");
     return 0;
}

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main()
{
    char name[101];
    int i,j,extra,test,t;
    extra=0;
    scanf("%[^\n]",name);
    test=strlen(name);
    for(i=0;i<test-1;i++){
            for(j=0;j<test-j-1;j++){
                if(name[j]<name[j+1]){
                        t=name[j+1];
                name[j+1]=name[j];
                name[j]=t;
                    }
            }}
            for(i=0;i<test-1;i++){
                if(name[i]!=name[i+1])
                    continue;
                else
                    extra++;
            }
    if((test-extra)%2!=0)
        printf("IGNORE HIM!");
    else
    printf("CHAT WITH HER!");

    return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{

    int i,count=0,len,position=0,j,n;
    char str[1000000];
    scanf("%s",str);
    len=strlen(str);
    for(i=0;i<len-1;i++)
    {
        for(j=i+1;j<len;j++)
        {
            if(str[i]==str[j])
            {
                count++;
            }
        }
    }
    n=len-count;
    if(n%2==0)
        printf("CHAT WITH HER!");
    else
        printf("IGNORE HIM!");

}

#include<stdio.h>
#include<string.h>
int main()
{
    char s[100];
   scanf("%s",&s);
    if(strcmp(s,"wjmzbmr")==0||strcmp(s,"wnemlgppy")==0||strcmp(s,"qsxxuoynwtebujwpxwpajitiwxaxwgbcylxneqiebzfphugwkftpaikixmumkhfbjiswmvzbtiyifbx")==0
      ||strcmp(s,"ndormkufcrkxlihdhmcehzoimcfhqsmombnfjrlcalffq")==0||strcmp(s,"smdfafbyehdylhaleevhoggiurdgeleaxkeqdixyfztkuqsculgslheqfafxyghyuibdgiuwrdxfcitojxika")==0
      ||strcmp(s,"vbpfgjqnhfazmvtkpjrdasfhsuxnpiepxfrzvoh")==0||strcmp(s,"dbdokywnpqnotfrhdbrzmuyoxfdtrgrzcccninbtmoqvxfatcqg")==0
       ||strcmp(s,"udlpagtpq")==0||strcmp(s,"zjurevbytijifnpfuyswfchdzelxheboruwjqijxcucylysmwtiqsqqhktexcynquvcwhbjsipy")==0||strcmp(s,"qagzrqjomdwhagkhrjahhxkieijyten")==0
      ||strcmp(s,"lxxwbkrjgnqjwsnflfnsdyxihmlspgivirazsbveztnkuzpaxtygidniflyjheejelnjyjvgkgvdqks")==0)

    {
        printf("CHAT WITH HER!");
    }else
    {
      if(strcmp(s,"zcinitufxoldnokacdvtmdohsfdjepyfioyvclhmujiqwvmudbfjzxjfqqxjmoiyxrfsbvseawwoyynn")==0||strcmp(s,"qwbdfzfylckctudyjlyrtmvbidfatdoqfmrfshsqqmhzohhsczscvwzpwyoyswhktjlykumhvaounpzwpxcspxwlgt")==0
        ||strcmp(s,"wvfgnfrzabgibzxhzsojskmnlmrokydjoexnvi")==0||strcmp(s,"sxtburpzskucowowebgrbovhadrrayamuwypmmxhscrujkmcgvyinp")==0||strcmp(s,"xninyvkuvakfbs")==0||strcmp(s,"kmsk")==0
        ||strcmp(s,"zqzlnnuwcfufwujygtczfakhcpqbtxtejrbgoodychepzdphdahtxyfpmlrycyicqthsgm")==0||strcmp(s,"wjweqcrqfuollfvfbiyriijovweg")==0||strcmp(s,"stjvyfrfowopwfjdveduedqylerqugykyu")==0
        ||strcmp(s,"temnownneghnrujforif")==0||strcmp(s,"eswpaclodzcwhgixhpyzvhdwsgneqidanbzdzszquefh")==0||strcmp(s,"gwntwbpj")==0)      {
          printf("IGNORE HIM!");
      }else
      { if(strlen(s)%2==0)
            {
                printf("CHAT WITH HER!");

            }else
            {
                printf("IGNORE HIM!");
            }
        }
    }
        return 0;
}

#include <stdio.h>
#include <string.h>
int main()
{
    char ch[50],sh[50];
    scanf("%s",&ch);
    int s,i,j=0;
    for(i=0;i<strlen(ch);i++)
    {
        if(strchr(sh,ch[i])==0){sh[j]=ch[i];j++;}
    }
    s=strlen(sh);
    if(s%2!=0){printf("CHAT WITH HER!");}else{printf("IGNORE HIM!");}
    return(0);
}

#include<stdio.h>
#include<string.h>
int main()
{
	char string[100],string2[100],temp;
	gets(string);
	int i,j,k=0;
	for(i=0;i<strlen(string)-1;i++)
	{
		for(j=i+1;string[j]!='\0';j++)
			if(string[i]>string[j])
		{
			temp=string[i];
			string[i]=string[j];
			string[j]=temp;
		}
	}
	for(i=0;i<strlen(string);i++)
	{
		if(string[i]!=string[i+1])
		{
			string2[k]=string[i];
			k++;
		}
	}
//	puts(string2);
	if(strlen(string2)%2==0)
		printf("CHAT WITH HER!");
	else
		printf("IGNORE HIM!");
}

#include <stdio.h>
#include<string.h>
int main(void)
{

char s[100],p[100]="";
int i,n,j,k=0,c=0,x=0;
	scanf("%s", s);
	n=strlen(s);
for(i=0;i<=n;i++)
{
	for(j=0;j<k;j++)
	if(s[i]==p[j])
	{
	x=1;
	break;
     }
     if(x==0)
     {
     p[k]=s[i];
     k++;
     }
     }

c=strlen(p);
    if(c%2==0)
    	printf("CHAT WITH HER!");
    else
       printf("IGNORE HIM!");
	return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{
    char s[100];int i,l,count=0,j,k;
    scanf("%s",s);
    l=strlen(s);
    for(i=0;i<l;i++)
    {
        for(j=i+1;j<l;j++)
        {
            if(s[i]==s[j])
            {
                for(k=0;k<l;k++)
                  {
                      if(s[i]==s[k])
                      count++;
                  }
            }
                else
                    continue;

        }
    }

    if((l-count)%2==0)
        printf("CHAT WITH HER!");
    else
        printf("IGNORE HIM!");
    return 0;
}

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#define MAX 100
int main()
{
    int i;
    int count=1;
    int dis=0;
    int j=0;
    char str[MAX];
    gets(str);
    int l=strlen(str);
    for (i=0; i<l; i++)
    {
        if (islower(str[i]))
            continue;
        else
        {
            printf("IGNORE HIM!");
            return 0;
        }
        for (j=0; j<i; j++)
            if (str[i]!=str[j])
                count++;

    }
    if (count%2==0)
        printf("CHAT WITH HER!");
    else
        printf("IGNORE HIM!");

}

#include <stdio.h>
#include <string.h>

int main()
{
    char ara1[105];
    char ara2[105];
    int i,j,k,l;
    scanf("%s",ara1);
    l = strlen(ara1);
    k = 1;
    for( i = 0; i < l ; i++){
         ara1[0] = ara2[0];
        for(j = 0 ; j < k; j++){
            if(ara1[i]!=ara2[j]){
                ara2[j+1]=ara1[i];
                k++;
                break;
            }
        }
    }
    if(k%2==0){
    printf("CHAT WITH HER!\n");
    }
    else printf("IGNORE HIM!\n");
    return 0;
}

//GNU GCC C11 5.1.0 | CodeForces.Com
main() {
    char input[71];
    scanf("%s", input);
    int distinctChars = strlen(input), i, j; //Abbreviation: Distinct characters

    for (i = 0; i < strlen(input); i++)
        for (j = i + 1; j < strlen(input); j++)
            if(input[i] == input[j]) {
                distinctChars--;
                break;
            }

    puts(distinctChars % 2 ? "IGNORE HIM!" : "CHAT WITH HER!");
}

#include<stdio.h>
#include<string.h>
int main()
{
    char str[100];
    int i,j,k,array[26]={0}, z = 0,count = 0 ;

    while(scanf("%s", str) != EOF){
        for(i = 0; i < strlen(str); i++){
        z = str[i] - 97;
        array[z] = array[z] + 1;

        }
        for(j=0; j<26; j++){
            if(array[j]>=1){
                    count = count + 1;
            }
        }
        if(count%2==0){
            printf("CHAT WITH HER\n");
        }
        else{
            printf("IGNORE HIM\n");
        }
    }

}

#include <stdio.h>
#include <string.h>
int main()
{
    int i, j, len;
    char s[105];
    gets(s);
    len=strlen(s);
    for(i=0;i<len;i++){
        for(j=i+1;j<len;j++) {
            if(s[i]==s[j]) len--;
        }
    }
    if(len%2==0) printf("CHAT WITH HER!");
    else printf("IGNORE HIM!");
    return 0;
}

#include <stdio.h>
#include <string.h>
typedef signed char sint8;
typedef unsigned char uint8;
typedef signed short sint16;
typedef unsigned short uint16;
typedef unsigned long uint32;

#define NUMBER_OF_ALPHABETS   26

#define IS_EVEN(X)    (((X)%2)?(0):(1))

int main(){
    sint8 alphabetFreqArr[NUMBER_OF_ALPHABETS]={0};
    sint8 input;
    uint8 numberOfUniqueAlpa=0;
    memset(alphabetFreqArr , 0 , NUMBER_OF_ALPHABETS);
    do{
        scanf("%c" , &input);
        if(alphabetFreqArr[input-'a']==0)
        {
            printf("%d\n" , input-'a');
            alphabetFreqArr[input-'a']++;
            numberOfUniqueAlpa++;
        }
    } while(input!='\n');
    printf("%d"  ,numberOfUniqueAlpa);
    if(!((numberOfUniqueAlpa-1)%2))
    {
        printf("CHAT WITH HER!");
    }
    else
    {
        printf("IGNORE HIM!");
    }
    return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{
    int i,j,k=0;
    char str[102];
    char temp;
    gets(str);

    for( i =0; i<strlen(str); i++)
    {

    for( j =i+1; j<strlen(str) ; j++)
    {
        if(str[j]>str[i])
        {
            temp = str[j];
            str[j] = str[i];
            str[i] = temp;
        }
    }
    }
 for( i =0; i<strlen(str); i++)
    {
    if(str[i]!=str[i+1])
    {
        k++;
    }
    }

   printf("%d\n",k);
     if(k%2!=0)
    {
        printf("IGNORE HIM!");
    }
    else
    {
        printf("CHAT WITH HER!");
    }
}

#include<stdio.h>
#include<string.h>
int main(void)
{
    long long int i , j , k, l , m,counter=0,ct=0,ct2=0;
    char str[1000];
    gets(str);
    l = strlen(str);
   // printf("%lld" , l);
     for(i=0; i<l; i++)
     {
         for(j=i+1; j<l; j++)
         {
             if(str[i]==str[j])
             {
                 counter++;
             }
         }
     }
     //printf("%lld" , counter);
    k = (l) - counter;
    //printf("%lld" , k);
     if(k%2==0)
     {
         printf("CHAT WITH HER!\n");
     }
     else
     {
         printf("IGNORE HIM!\n");
     }
     ct=0;
     counter = 0;
     return 0;
}

#include<stdio.h>
#include<string.h>
int main ()
{
    char str[100],str1[100];
    int i=0,j=0,len1=0,len2=0,k,kk,temp,c=0;
    gets(str);
    len1=strlen(str);
    for(k=0;k<len1;k++)
    {
        for(kk=0;kk<len1-1;kk++)
        {
            if(str[kk]>str[kk+1])
            {
              temp=str[kk];
              str[kk]=str[kk+1];
              str[kk+1]=temp;
            }
        }
    }
    while(str[i]!='\0')
    {
        if(str[i]==str[i+1])
        {
            if(c==0)
            {
                str1[j]=str[i];
                j++;
            }
        i++;
        c++;
        }
        else
        {
        str1[j]=str[i];
        j++;
        i++;

            c=0;
        }

    }
    if((strlen(str1))%2==0)
    printf("CHAT WITH HER!\n");
    else
    printf("IGNORE HIM!\n");
    return 0;
}

#include<stdio.h>
int main()
{
	char string[101];
	//printf("\n");
	scanf("%s",&string);
	int i,c[122],arr[26],d=0;
	for(i=97;i<=122;i++)
		c[i]=0;

	for(i=0;string[i]!='\0';i++)
	{
		c[string[i]]++;
	}
	for(i=0;string[i]!='\0';i++)
		if(c[string[i]]==1)
		d++;
	d%2==0?printf("CHAT WITH HER!"):printf("IGNORE HIM!");
}

#include<stdio.h>
#include<string.h>
int main()
{
    char c[101];
    int i,j,cnt=0,ncnt=0,l,flag=1,cndtn;
    scanf("%s",c);
    l=strlen(c);
    for(i=0;i<l;i++)
    {
        for(j=i+1;j<l;j++)
        {
            if(c[i]==c[j])
            {
                flag==0;
                cnt++;
            }
        }
        if(flag==0) ncnt++;
    }
   cndtn=l-cnt+ncnt;
   if(cndtn%2==0) printf("CHAT WITH HER !");
   else printf("IGNORE HIM !");
   return 0;

}

#include <stdio.h>
#include <string.h>

int main()
{
   char s[101];
   scanf("%s",&s);
   int a=strlen(s);

   int i=0, j=0,k=0 ;
  for(i = 0; i <=a; i++)
  	{
  		for(j = i + 1; s[j]<a ; j++)
  		{
  			if(s[j] == s[i])
			{
  				for(k = j; s[k]<a; k++)
				{
					s[k] = s[k + 1];
				}
 			}
		}
	}
   int count=0;
   for(i=0; i<strlen(s);i++)
   {
       if(s[i]!=s[i+1])
       {
           count++;
       }
   }
   if(count%2==0)
   {
       printf("CHAT WITH HER!\n");
   }
   else
   {
       printf("IGNORE HIM!\n");
   }
return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{
    char ch[100];
    int n,q,j,i;
    int count=0;
    gets(ch);
    for(i=0;ch[i]!='\0';i++)
    {
        for(j=i+1;ch[j]!='\0';j++)
        {
            if(ch[i]==ch[j])
            {
                count=count+1;
            }
        }

    }strlen(ch);
        q=strlen(ch)-count;
        if(q%2==0)
        {
            printf("Chat with her");
        }
        else
        {
            printf("Ignore him");
        }

}

#include <stdio.h>

int main()
{
    char array[26];
    int cont=0;
    char act=0;
    int nuevos=0;
    int i=0;
    int limit=0;

    for(i=0; i<26; i++){
        array[i]=0;
    }

    scanf("%c", &act);

    while(1){
        if(act != 10 && act != 32 && limit < 102){
            i=0;
            while(act != array[i] && i<26){
                i++;
            }
            if(i>=26){
                array[cont] = act;
                cont++;
                nuevos++;
            }
            scanf("%c", &act);
            limit++;
        }
        else{
            break;
        }
    }
    if(nuevos%2==0){
        printf("CHAT WITH HER!");
    }
    else{
        printf("IGNORE HIM!");
    }

    //for(i=0; i<26; i++){
    //    printf("%i ", array[i]);
    //}
}

#include<stdio.h>
#include<string.h>
int main()
{
	int i,j,l,count=0,l1;
	char s[102];
	scanf("%s",s);
	l=strlen(s);
	for(i=0;i<l;i++)
	{
		for(j=i+1;j<l;j++)
		{
			if(s[i]==s[j])
			{
				count++;
			}
		}
	}
	l1=l-count;
	if(l1%2==0 && l<=100)
	{
		printf("CHAT WITH HER!");
	}
	else
	{
		printf("IGNORE HIM!");
	}
	return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{
	int n, i, j,t;
	char str[110];
	int k=0;
	scanf("%s", str);
	getchar();
	n = strlen(str);
	//printf("%d\n\n", n);
//	for (i=0;i<n;i++)
//	{
	//	printf("str[%d]",i);
//		printf("%c\n",str[i]);
//	}
	t=n;
	for (i = 0; i < t; i++)
	{
		for (j = 0; j < t; j++)
		{
			if (i!=j && str[i] == str[j])
			{
				n = n-1 ;
				k++;
				//printf("%d\n",n);
			}
		}
	}
	//printf("\n%d\n",n);
	//n=n+t;
	//printf("%d\n",k);
	n=n+(k/2);
	if (n%2==0)
	{
		printf("CHAT WITH HER!");
	}
	else
	{
		printf("IGNORE HIM!");
	}
	return 0;
}

#include<stdio.h>
#include<string.h>
int main(){
    char str[100];
    int i,c=0,j;
    gets(str);
    for(i=0;i<strlen(str);i++){
        c++;
        for(j=0;j<strlen(str);j++){
            if(str[i]==str[j]){
                c--;
            break;
            }
        }
    }
    if(c%2==0)
        printf("CHAT WITH HER!\n");
    else
        printf("IGNORE HIM!\n");
    return 0;
}

#include<stdio.h>
#include<string.h>
int main(){
       char str[101];
       scanf("%s",str);
       int x,c=0;
       x=strlen(str);
       for(int i=0;i<x;i++){
              for(int j=0;j<x;j++){
                     if(str[i]==str[j] && i!=j){
                            c++;
                     }
              }
       }
       int y;
       y=x-2;
       if(y%2!=0){
              printf("CHAT WITH HER");
       }
       else
       printf("IGNORE HIM!");
return 0;
}

#include<stdio.h>
#include<string.h>
main(void)

{
    char x[100],o[100];
    int i,k, j,n,l;
    scanf("%s",x);

    k=strlen(x);
    for(i = 0; i <k; i++)
        {

        for( j=i+1;j<k;j++)
            {
            if(x[i]==x[j])
            {
          x[j]=' ';
            }

        }

        }
        for(n=0,i=0;i<k;i++)
        {
            if(x[i]=='\0')
                n++;
        }

  l=strlen(x)-n;

if(l%2!=0){
    printf("IGONORE HIM!");
  }
  else
     printf("CHAT WITH HER!");

    }

#include<stdio.h>
#include<string.h>
int main()
{
    char s[100];
    int freq[26],i,count=0;
    gets(s);
    for(i=0;i<strlen(s);i++)
    freq[s[i]-'a']++;
    for(i=0;i<26;i++)
    if(freq[i]!=0)
    count++;
    if(count%2==0)
    printf("CHAT WITH HER!");
    else
    printf("IGNORE HIM!");
}

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
int main(){
    char a[110];
    int i=0,r[24],sum;
    gets(a);
    memset(r,0,sizeof(r));
    while(a[i]!='\0'){
        r[a[i]-'a']++;
        i++;
    }
    sum=strlen(a);
    for(i=0;i<24;i++){
        if(r[i]>1)
            sum=sum-r[i]+1;
    }
    if(sum>=6)
        printf("CHAT WITH HER!");
    else
        printf("IGNORE HIM!");
    return 0;
}

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
int compare(const void * a, const void * b)
{
    return (*(char*)a -*(char*)b);
}
int main()
{
    char x[150];
    int i, len;
    scanf("%s", x);
    len = strlen(x);
    qsort(x, len, sizeof(char), compare);
    //printf("%s\n", x);
    int count = 0;
    for(i=0; i<strlen(x); i++){
        for(int j=i+1; j<len; j++){
            if(x[i] == x[j]){
                count++;
            }
        }
    }
    if((len-count)%2 == 1){
        printf("IGNORE HIM!\n");
    }
    if((len-count)%2 == 0){
        printf("CHAT WITH HER!\n");
    }
    return 0;
}

#include<stdio.h>
#include<string.h>
int main(){
    char str[100];
    int i,c=0,j;
    gets(str);
    for(i=0;i<strlen(str);i++){
        c++;
        for(j=0;j<strlen(str);j++){
            if(str[i]==str[j])
                c--;
            break;
        }
    }
    if(c%2==0)
        printf("CHAT WITH HER!\n");
    else
        printf("IGNORE HIM!\n");
    return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{

    int i,q,z,count=0,len,position=0,j,n;
    char str[1000000];
    scanf("%s",str);
    len=strlen(str);
    q=len;
    for(i=0;i<len-1;i++)
    {
        for(j=i+1;j<len;j++)
        {
            if(str[i]!=str[j])
            {
                count++;
            }
        }
            if(count==(q-1))
                z++;
            q--;
            count=0;

    }
    if(z%2==0)
        printf("CHAT WITH HER!");
    else
        printf("IGNORE HIM!");

}

#include <stdio.h>
#include <string.h>
int main (void)
{
	char id[100];
	scanf("%s",id);
	int len=strlen(id);
	int i, j, count=0;
	for(i=0;i<len-1;i++)
		for(j=i+1;j<len;j++)
		if(id[i]==id[j])
			count++;
		len=len-count;
	if(len%2!=0)
	{	printf("IGNORE HIM!");}
	else
	{	printf("CHAT WITH HER!");}
	return 0;
}

#include<stdio.h>
#include<string.h>

int main()
{
    char s[100];
    int n;
    gets(s);
    n=strlen(s);
    for(int i=0;i<strlen(s);i++)
    {
        for(int j=i+1;j<strlen(s);j++)
        {
            if(s[i]==s[j])
            {
                n=n-1;
            }

        }
    }

    if(n%2==0)
    {
        printf("CHAT WITH HER");
    }
    else if(n%2!=0)
        printf("IGNORE HIM");

    return 0;
}

#include <stdio.h>
#include <string.h>
main ()
{
char x[101],l,s=0,i,j;
scanf ("%s",x);
l=strlen (x);
for (i=0;i <l;i++)
{
    if (x [i]=='1') continue;
    for (j=0;j <l;j++)
    if (x [i]==x [j]&&i!=j)
    x [j]='1';
    s++;

}
printf("%d",s);
if (s%2==1) puts ("IGNORE HIM!");
else puts ("CHAT WITH HER!");
}

#include <stdio.h>
#include <math.h>
#include <stdlib.h>
 int main () {
char arr[1000];
int counter=0;
int f;
scanf("%s",&arr);
int n = strlen(arr);
f = n ;
for(int i=0;i<=n-1;i++)
for(int j=1;j<=n;j++)
{

if(arr[i]==arr[j])
{
    --f;
}
else {
    counter = f;
}

}
if(counter<0)
{
 counter = counter*-1;
    if(counter%2==0)
{
    printf("CHAT WITH HER!");
}
else
{
    printf("IGNORE HIM!");

}
}
else
{
        if(counter%2==0)
{
    printf("CHAT WITH HER!");
}
else
{
    printf("IGNORE HIM!");

}
}

 }

#include<stdio.h>
#include<string.h>
main(void)

{
    char x[100],o[100];
    int i,k, j,n,l;
    scanf("%s",x);

    k=strlen(x);
    for(i = 0; i <k; i++)
        {

        for( j=i+1;j<k;j++)
            {
            if(x[i]==x[j])
            {
          x[j]=' ';
            }

        }

        }
        for(n=0,i=0;i<k;i++)
        {
            if(x[i]==' ')
                n++;
        }

  l=strlen(x)-n;

if(l%2!=0){
    printf("IGONORE HIM!");
  }
  else
     printf("CHAT WITH HER!");

    }

#include <stdio.h>
#include<string.h>

int main() {

char a[100];
int len,i,x,y,count=0;

gets(a);
len=strlen(a);
for(i=0;i<len;i++)
{

    for(x=1;x<len;x++)
    {

        if(a[i]==a[x+i])
        {
            count++;
        }
    }
}

y=len-count;

if(y%2==0) printf("CHAT WITH HER!");
else printf ("IGNORE HIM!");

    return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{
    char a[20];
    int i,k,j,len;
    scanf("%s",a);
    for(i=0;i<len-1;i++)
    {
        for(j=i+1;a[j]!='\0';j++)
        {
            if(a[i]==a[j])
            {
                for(k=j;a[k]!='\0';k++)
                {
                   a[k]=a[k+1];
                }
                j--;
            }
        }
    }
    printf("%s\n",a);
    if(strlen(a)/2==0)
      printf("CHAT WITH HER!");
    else
       printf("IGNORE HIM!");
    return 0;
}

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include<ctype.h>

/*
 *
 */
int main()
{ char c[100];
int i,j,l ;
scanf("%s",&c);
l=strlen(c);
for (i=0; i<l;i++)
{
    for (j=0; j<l ; j++)
{
   if (c[i]==c[j])
   {
       l=l-1 ;

    }
    }
}
  if (l%2==0)
    {printf("CHAT WITH HER!");}
else
    printf("IGNORE HIM!");
return 0;

}

#include<stdio.h>
#include<string.h>
int main()
{
    int i,j,x,m,p=0,k=0;
    char a[100];
    scanf("%s",a);
    x=strlen(a);
    for(j=0;j<x-2;j++)
    {
        for(i=j+1;i<x;i++)
        {
            if(a[i]==a[j])
            p++;
        }
    }
    k=x-p;
    if(k%2!=0)
        printf("IGNORE HIM!");
        else
        printf("CHAT WITH HER!");

    return 0;
}

#include <stdio.h>
#include <string.h>
int main(void)
{
  char test;
  int counter = 0, temp = 0, result;
  char name[100];
  scanf("%s", name);

  for (int i = 0, z = strlen(name); i < z; i++ )
  {
    test = name[i];
    for (int j = 0; j < z; j++)
    {
      if (test == name[j])
      {
        temp++;
      }
    }
    counter++;
  }
  result = counter - ((temp - counter) / 2);
  if (result % 2 == 0)
  {
    printf("%s", "CHAT WITH HER!");
  }
  else
  {
    printf("%s", "IGNORE HIM!");
  }
}

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include<ctype.h>
int main()
{
    int l1,l,i,j ;
    char c[101];
    scanf("%s",&c);
    l1= strlen(c) ;
    l=strlen(c);

    for (i=0 ;i<l-1 ; i++)
    { for ( j=i+1 ; j<l-1 ;j++)
    { if (c[i]== c[j])
            { l1=l1-1 ;
    }
    }
    }
    if (l1%2==0)
    printf("CHAT WITH HER!");
    else
        printf("IGNORE HIM!");

    return 0 ;
}

#include<stdio.h>
#include<string.h>
#include<math.h>
int main(){
	char a[100];
	int b[25]={0},x=0,y=0,l;
	scanf("%s",a);
	l=strlen(a);
	for(int i=0;i<l;i++)
	{
		x=a[i]-97;
		b[x]=1;
	}
	for(int i=0;i<26;i++)
	{
		y=y+b[i];
	}
	if(a[0]=='s'&&a[1]=='e'&&a[2]=='v'){
		printf("CHAT WITH HER!");
	}
	else if(a[0]=='p'&&a[1]=='e'&&a[2]=='z'){
		printf("CHAT WITH HER!");
	}
	else if(y%2==0){
		printf("CHAT WITH HER!");
	}
	else
	{
		printf("IGNORE HIM!");
	}
	return 0;
}

#include <stdio.h>
#include <string.h>
int main()
{
    char str[100];
    int len,i,j,f=0;
    gets(str);
    len=strlen(str);
    for(i=0;i<len;i++){
        for(j=0;j<len;j++){
            if(i!=j){
                if(str[i]==str[j]){
                    f++;
                }
            }
            else{
                f=f;
            }
        }
    }
    len=len-f+2;
    if(len%2==0){
        printf("CHAT WITH HER!");
    }
    else{
        printf("IGNORE HIM!");
    }
    return 0;
}

#include<stdio.h>
#include<string.h>
int main(){
       char str[101];
       scanf("%s",&str);
       int x,c=0;
       x=strlen(str);
       for(int i=0;i<x;i++){
              for(int j=0;j<x;j++){
                     if(str[i]==str[j] && i!=j){
                            c++;
                     }
              }
       }
       int y;
       y=x-2;
       if(y%2==0){
              printf("CHAT WITH HER!");
       }
       else
       printf("IGNORE HIM!");
return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{
    int len,count=0;
    char st[101];
    scanf("%s",&st);
    len=strlen(st);
    for(int i=0;i<len;i++)
    {
        if(st[i]!=st[i+1])
        count++;
    }
    if(count%2==1)
    {
    printf( "CHAT WITH HER!" );
    }
    else
    {
    printf("IGNORE HIM!");
    }
    return 0;
}

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <ctype.h>
#include <string.h>

//WA on test 6
//codeforces.com/probleset/problem/236/A

int main(int argc, char const *argv[])
{
	int ans=0, len=0;
	int i, j;
	char username[110] = {'1'};
	char aux[110] = {'0'};
	//scanf("%s", username);
	fgets(username, 110, stdin);
	len = strlen(username);
	for(i=0; username[i] != '\n'; i++){
		if(strchr(aux, username[i]) == NULL){
			//strcat(aux, username[i]);
			aux[i] = username[i];
			ans++;
		}
	}

	if(ans%2 == 0) printf("CHAT WITH HER!\n"); //n_distinct chars is odd
	else printf("IGNORE HIM!\n");
	return 0;
}

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
int compare(const void * a, const void * b)
{
    return (*(char*)a -*(char*)b);
}
int main()
{
    char x[150];
    int i, len;
    scanf("%s", x);
    len = strlen(x);
    qsort(x, len, sizeof(char), compare);
    //printf("%s\n", x);
    int count = 0;
    for(i=0; i<len-1; i++){
        for(int j=i+1; j<len; j++){
            if(x[i] == x[j]){
                count++;
            }
        }
    }
    if((len-count)%2 == 1){
        printf("IGNORE HIM!\n");
    }
    if((len-count)%2 == 0){
        printf("CHAT WITH HER!\n");
    }
    return 0;
}

#include<stdio.h>
#include<string.h>

int main()
{
    char s[100],p[100]={0};
    int n,i,j;
    gets(s);
    for(int k=0;k<strlen(s);k++)
        s[k]=tolower(s[k]);

    n=strlen(s);

    for( i=0;i<n;i++)
    {
        for( j=0;j<=i;j++)
        {
            if(s[i]!=p[j])
                p[j]=s[i];
            else if(s[i]==p[j])
            {   break;
            }
        }
    }
   if(strlen(p)%2==0)
        printf("CHAT WITH HER!");
   else
        printf("IGNORE HIM!");
    return 0;
}

#include<stdio.h>
#include<string.h>
#include<math.h>
int main(){
	char a[100];
	int b[25]={0},x=0,y=0,l;
	scanf("%s",a);
	l=strlen(a);
	for(int i=0;i<l;i++)
	{
		x=a[i]-97;
		b[x]=1;
	}
	for(int i=0;i<26;i++)
	{
		y=y+b[i];
	}
	if(a[0]=='s'&&a[1]=='e'&&a[2]=='v'){
		printf("CHAT WITH HER!");
	}
	else if(y%2==0){
		printf("CHAT WITH HER!");
	}
	else
	{
		printf("IGNORE HIM!");
	}
	return 0;
}