Your friend has n cards.You know that each card has a lowercase English letter on one side and a digit on the other.Currently, your friend has laid out the cards on a table so only one side of each card is visible.You would like to know if the following statement is true for cards that your friend owns: "If a card has a vowel on one side, then it has an even digit on the other side." More specifically, a vowel is one of 'a', 'e', 'i', 'o' or 'u', and even digit is one of '0', '2', '4', '6' or '8'.For example, if a card has 'a' on one side, and '6' on the other side, then this statement is true for it. Also, the statement is true, for example, for a card with 'b' and '4', and for a card with 'b' and '3' (since the letter is not a vowel). The statement is false, for example, for card with 'e' and '5'. You are interested if the statement is true for all cards. In particular, if no card has a vowel, the statement is true.To determine this, you can flip over some cards to reveal the other side. You would like to know what is the minimum number of cards you need to flip in the worst case in order to verify that the statement is true.

The first and only line of input will contain a string s (1 ≤ |s| ≤ 50), denoting the sides of the cards that you can see on the table currently. Each character of s is either a lowercase English letter or a digit.

Print a single integer, the minimum number of cards you must turn over to verify your claim.

NoteIn the first sample, we must turn over both cards. Note that even though both cards have the same letter, they could possibly have different numbers on the other side.In the second sample, we don't need to turn over any cards. The statement is vacuously true, since you know your friend has no cards with a vowel on them.In the third sample, we need to flip the second and fourth cards.

#include <stdio.h>

int main()
{
    char str[51];
    scanf("%s", str);
    char match[] = {"aeiou"};
    int cnt = 0;
    for(int i = 0; str[i]; ++i) {
        if(str[i] >= '1' && str[i] <= '9' && (str[i] - '0') & 1) {
            ++cnt;
        } else {
            for(int j = 0; j < 5; ++j) {
                if(str[i] == match[j]) {
                    ++cnt;
                }
            }
        }
    }
    printf("%d\n", cnt);
    return 0;
}

#include<stdio.h>

int main()
{
    char str[100];
    while (scanf("%s", &str, 100) != EOF)
    {
        int count = 0;
        for (int i = 0; str[i] != '\0'; i++) {
            if (str[i] == 'a' || str[i] == 'e' || str[i] == 'i' || str[i] == 'o' || str[i] == 'u')
                count++;
            else if (str[i] >= '0' && str[i] <= '9' && (str[i] - '0') % 2)
                count++;
        }
        printf("%d\n", count);
    }
    return 0;
}

#include<stdio.h>
#include<stdlib.h>
#include<math.h>
#include<string.h>
int main(void)
{
	char str[50];
	int b,i,count;
	scanf("%s",&str);
	b=strlen(str);
	count=0;
	for(i=0;i<b;i++)
	{
      if((str[i]>='a')&&(str[i]<='z'))
      {
	  if(str[i]=='a')
	  count++;
	  if(str[i]=='e')
	  count++;
	  if(str[i]=='i')
	  count++;
	  if(str[i]=='o')
	  count++;
	  if(str[i]=='u')
	  count++;
      }
      else
      {
      	if((str[i]=='1')||(str[i]=='3')||(str[i]=='5')||(str[i]=='7')||(str[i]=='9'))
      	count++;
     }

	}
	printf("%d",count);
}

#include<stdio.h>
#include<string.h>
int main ()
{
    char str[10000];
    scanf("%s",str);
    int i,count=0;
    for(i=0; i<strlen(str); i++)
    {
        if(str[i]=='a' || str[i]=='e' || str[i]=='i' || str[i]=='o' || str[i]=='u'  || str[i]=='1' || str[i]=='3' || str[i]=='5' || str[i]=='7' || str[i]=='9')
            count++;
    }
    printf("%d",count);
    return 0;
}

#include <stdio.h>

int main(void)
{
	int a = 0;
	char c;
	do
	{
		c = getchar();
		if(c == 'a' || c == 'o' || c == 'u' || c == 'e' || c == 'i')
			a++;
		else if ((c >= '0' && c <= '9') && c%2 == 1)
			a++;
		else
			continue;
	} while (c != EOF && c != '\n');
	printf("%d\n", a);
	return 0;
}

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

int main()
{

    char str[100];

    scanf("%s",str);
    int trc=0,i;
    for(i=0;i<strlen(str);i++)
    {
        if(str[i]=='a'||str[i]=='e'||str[i]=='i'||str[i]=='o'||str[i]=='u')
        {
            trc++;
        }
        if(str[i]>='1'&&str[i]<='9')
        {
            int n=str[i]-'0';
            if(n%2!=0)
            {
                trc++;
            }
        }
    }

    printf("%d\n",trc);
    return 0;

}

# include <stdio.h>
# include <string.h>
char s[51];
int arr[126];
int main(void){
	int count=0;
	scanf("%s",s);
	for (int i=0;i<strlen(s);i++){
		if (s[i]=='a'||s[i]=='e'||s[i]=='i'||s[i]=='o'||s[i]=='u')
			count++;
		else arr[(int)s[i]]++;
	}
	for(int i=48;i<60;i++) if (i&1) if (arr[i]) count+=arr[i];
	printf("%d\n",count);
	return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{
    char arr[100];
    int i,n,x,count=0;
    scanf("%s",arr);
    x=strlen(arr);
    for (i=0;i<x;i++)
    {
        if (arr[i]=='a' || arr[i]=='e' || arr[i]=='i' || arr[i]=='o' || arr[i]=='u' || arr[i]=='1' || arr[i]=='3' || arr[i]=='5' || arr[i]=='7' || arr[i]=='9')
        {
            count++;
        }
        else
        {
            continue;
        }
    }
    printf("%d",count);
}

#include <stdio.h>
#include <stdlib.h>
int func(int);
int main(int argc, char *argv[])
{
	int cnt=0;
	char ch;
	while((ch=getchar())!='\n')
	{
		if(ch=='a'||ch=='e'||ch=='i'||ch=='o'||ch=='u')
			cnt++;
		else if(isdigit(ch)&&(ch-48)%2==1)
			cnt++;
	}
	printf("%d",cnt);
}

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

int min_cards(char c){

  if(c=='a'){
    return 1;
  }

  if(c=='e'){
    return 1;
  }

  if(c=='i'){
    return 1;
  }

  if(c=='o'){
    return 1;
  }

  if(c=='u'){
    return 1;
  }

  if(c=='1'){
    return 1;
  }

  if(c=='3'){
    return 1;
  }

  if(c=='5'){
    return 1;
  }

  if(c=='7'){
    return 1;
  }

  if(c=='9'){
    return 1;
  }

  return 0;
}

int main(void){

  char cards[55];

  int minimum=0;

  scanf("%s", cards);

  for(int i=0; i<strlen(cards);i++){
    minimum+=min_cards(cards[i]);
  }

  printf("%d\n", minimum);

}

#include <math.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#include <limits.h>
#include <stdbool.h>
int main()
{
char a[51];
        scanf("%s",a);
    int count=0;
  for(int i=0;i<strlen(a);i++){
      if(a[i]=='1'||a[i]=='3'||a[i]=='5'||a[i]=='7'||a[i]=='9'||a[i]=='a'||a[i]=='e'||a[i]=='i'||a[i]=='o'||a[i]=='u')
          count++;
  }
    printf("%d",count);

    return 0;
}

#include<stdio.h>
#include<string.h>
main(){
  int cnt, flip=0, n;
  char str[51];
  gets(str);
  n=strlen(str);
  for(cnt=0;cnt<n;cnt++){
    switch(str[cnt]){
      case 'a':
      case 'e':
      case 'i':
      case 'o':
      case 'u':
      case '1':
      case '3':
      case '5':
      case '7':
      case '9': flip++;
    }
  }
  printf("%d", flip);
  }

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

int main()
{
	char str[51];
	scanf("%s",str);
	int n=strlen(str),i=0,count=0,flag=0;
	if (n>1)
	{
		for (i=0;str[i]!='\0' && i<=n;i++)
		{
			int testnum=str[i]-'0';
			int testalpha=str[i]-'a';
			if (testnum>=0 && testnum<10 && testnum%2!=0)
			{
				count++;
			}
			else if (testalpha>=0 && testalpha<26)
			{
				if (testalpha==0 || testalpha==4 || testalpha==8 || testalpha==14 || testalpha==20)
				{
					count++;
				}
			}
		}
	}
	else if (n==1)
	{
		int testnum=str[0]-'0';
		int testalpha=str[0]-'a';
		if (testalpha>=0 && testalpha<26)
		{
			if (testalpha==0 || testalpha==4 || testalpha==8 || testalpha==14 || testalpha==20)
			{
				count=1;
			}
		}
		else if (testnum>=0 && testnum<10 && (testnum%2)!=0)
			{
				count=1;
			}
	}
	printf("%d\n",count);
	return 0;
}

#include <stdio.h>
#include <string.h>
int main()
{
	char str[100];
	gets(str);
	int cnt=0,i,l=strlen(str);
	for(i=0;i<l;i++)
	{
		if(str[i]=='a'||str[i]=='e'||str[i]=='i'||str[i]=='o'||str[i]=='u')
		  cnt++;
		 if (str[i]<='9'&&str[i]>='0')
		 {
            if((str[i]-'0')&1)
			cnt++;
         }
	}
	printf("%d",cnt);
	return 0;
}

#include <stdio.h>
#include <string.h>
#define MAX 57

int main()
{
	char str[MAX];
	scanf("%s", str);
	int len = strlen(str), i, ans = 0;
	for(i=0;i<len;++i)
	{
		if(str[i] == 'a' || str[i] == 'e' || str[i] == 'i' || str[i] == 'o' || str[i] == 'u' || (str[i] <= 57 && ((str[i] - '0') & 1)))
		{
			++ans;
		}
	}
	printf("%d\n", ans);
	return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{
	char str[100];
	int l,i,c=0;
	scanf("%s",str);
	l=strlen(str);
	for(i=0;i<l;i++)
	{
		if(str[i]=='a' || str[i]=='e' || str[i]=='i' || str[i]=='o' || str[i]=='u')
			c++;
		if((int)str[i]>=48 && (int)str[i]<=57)
		{
			if((int)str[i]%2==1)
				c++;
		}
	}
	printf("%d\n",c);
	return 0;
}

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

#define MAX 1000010
#define clr(ar) memset(ar, 0, sizeof(ar))
#define read() freopen("lol.txt", "r", stdin)

char str[MAX];

int main(){
    int n, i, j, res;

    while (scanf("%s", str) != EOF){
        res = 0, n = strlen(str);
        for (i = 0; i < n; i++){
            if (str[i] == 'a') res++;
            if (str[i] == 'e') res++;
            if (str[i] == 'i') res++;
            if (str[i] == 'o') res++;
            if (str[i] == 'u') res++;
            if (str[i] == '1') res++;
            if (str[i] == '3') res++;
            if (str[i] == '5') res++;
            if (str[i] == '7') res++;
            if (str[i] == '9') res++;
        }

        printf("%d\n", res);
    }
    return 0;
}

#include <stdio.h>
#include <string.h>
int main()
{
    char str[55];
     int i,count=0;

    scanf("%s",str);

    for(i=0; i<strlen(str); i++)
    {
        if((str[i] == 'a' || str[i] == 'e' || str[i] == 'i' || str[i] == 'o' || str[i] == 'u') || (str[i] == '1' || str[i] == '3' || str[i] == '5' || str[i] == '7' || str[i] == '9') )
        {
            count++;
        }

    }
    printf("%d\n",count);

    return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{
char str[50];
int i,j=0,l,s;
gets(str);
l=strlen(str);
for(i=0;i<l;i++)
{
    if(str[i]=='a' || str[i]=='e' || str[i]=='i' || str[i]=='o' || str[i]=='u') j++;
    else if(str[i]>='0' && str[i]<='9')
    {
        s=str[i];
        if(s%2!=0) j++;
    }
}
//printf("%d\n",s);
printf("%d",j);
return 0;
}

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

int main() {
    int ch, count=0;

    while((ch=getchar())!='\n') {
        switch(ch) {
            case 'a':
            case 'e':
            case'i':
            case'o':
            case'u':
            case '1':
            case '3':
            case '5':
            case '7':
            case '9':
                count++;
                break;
            default:
                ;
        }

    }

    printf("%d", count);

    return 0;
    }

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

int main(){
    char cards[51];
    scanf("%s", &cards);
    int res = 0;
    for(int i = 0; i < strlen(cards); i++){
        if(cards[i] == 'a' || cards[i] == 'e' || cards[i] == 'i' || cards[i] == 'o' || cards[i] == 'u' ||
           cards[i] == '1' || cards[i] == '3' || cards[i] == '5' || cards[i] == '7' || cards[i] == '9')
           res++;
    }
    printf("%d", res);
    return 0;
}

#include<stdio.h>
#include<ctype.h>
#include<string.h>
int pri(char c)
{
	if(c=='a'||c=='e'||c=='i'||c=='o'||c=='u')
	return 1;

	return 0;
}
int main()
{
	int n,v;
	char s[1010];
	while(scanf("%s",s)!=EOF)
	{
		v=0;
		n=strlen(s);
		for(int i=0;i<n;i++)
		{
			if(pri(s[i]))
			v++;
			else if(isdigit(s[i])&&(s[i]-'0')%2)
			v++;
		}
		printf("%d\n",v);
	}
	return 0;
 }

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

char flip[] = "aeiou13579";

int c, res;

int main(void) {
    while (c = getchar(), c != EOF)
        if (strchr(flip, c))
            ++res;
    printf("%d\n", res);
    return 0;
}

#include<stdio.h>
#include<stdlib.h>
int main()
{
  char s[50];
  int n,i,sum=0;
 scanf("%s",s);
  n=strlen(s);
  for(i=0;i<n;i++)
  {
		 if(s[i]=='a')
		    sum++;
		else if(s[i]=='e')
		sum++;
		 else if(s[i]=='i')
		 sum++;
			else if(s[i]=='o')
			sum++;
		 else if(s[i]=='u')
			 sum++;
  }
  for(i=0;i<n;i++)
  {
    if(s[i]=='1')
		    sum++;
		else if(s[i]=='3')
		sum++;
		 else if(s[i]=='5')
		 sum++;
			else if(s[i]=='7')
			sum++;
		 else if(s[i]=='9')
			 sum++;
  }
  printf("%d\n",sum);
  return 0;
}

#include <stdio.h>

// CREATED BY AHNAF SHAHREAR

int main ( )

{
         int Z , CARDS = 0 , TEMP ;
         char STRING [ 51 ] ;
         gets ( STRING ) ;
         for ( Z = 0 ; STRING [ Z ] ; Z ++ )
         {
                  if ( STRING [ Z ] > 95 && STRING [ Z ] < 123 )
                  {
                           TEMP = 0 ;
                  }
                  else TEMP = STRING [ Z ] - '0' ;
                  if ( STRING [ Z ] == 'a' ) CARDS ++ ;
                  else if ( STRING [ Z ] == 'e' ) CARDS ++ ;
                  else if ( STRING [ Z ] == 'i' ) CARDS ++ ;
                  else if ( STRING [ Z ] == 'o' ) CARDS ++ ;
                  else if ( STRING [ Z ] == 'u' ) CARDS ++ ;
                  else if ( TEMP % 2 ) CARDS ++ ;
         }
         printf ( "%d\n", CARDS ) ;
         return 0 ;
}

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

int main()
{
    int len,count=0,i,n;
    char ch[100];
    gets(ch);
    len=strlen(ch);
    for(i=0;i<len;i++)
    {
        if(ch[i]>='a' && ch[i]<='z')
        {
            if(ch[i]=='a' || ch[i]=='e' || ch[i]=='i' || ch[i]=='o' || ch[i]=='u') count++;
        }
        else
        {
            n=ch[i]-'0';
            if(n%2!=0) count++;
        }
    }
    printf("%d\n",count);
    return 0;
}

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
int vocal(int x){
	if(x == 'a' || x == 'e' || x == 'i' || x == 'o' || x == 'u')
		return 1;
	return 0;

}

int main(){
	int a,b,c,d,e,f;
	char A[100];
	a = 0;
	while((c = getchar()) != EOF && c != '\n'){
		if(isdigit(c)){
			if((c-'0')%2)
				a++;

		}else{
			if(vocal(c))
				a++;
		}
	}
	printf("%d\n",a);

	return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{
	char str[51];
	scanf("%s",str);
	int len = strlen(str);
	int temp=0;
	int count=0;
	while(temp!=len)
	{
		if((str[temp]=='a'||str[temp]=='e'||str[temp]=='i'||str[temp]=='o'||str[temp]=='u'))
		{
		count++;
		}
		else if ((str[temp]=='1'||str[temp]=='3'||str[temp]=='5'||str[temp]=='7'||str[temp]=='9'))
		{
		count++;
		}
		temp++;
	}
	printf("%d\n",count);

}

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

int whetherTurn(int a);

int count = 0;
char n[50];

int main(void){
  scanf("%[^\n]s", n);
  int numberCards = strlen(n);
  for(int i = 0; i < numberCards; i++){
    int element;
    if(n[i] >= '0' && n[i] <= '9'){
      element = n[i] - '0';
        if(element%2 == 1){
          count++;
        }
    }
    else{
      element = n[i];
      count += whetherTurn(element);
    }
  }
  printf("%i\n", count);
}

int whetherTurn(int a){
  if(a == 'a' || a == 'e' || a == 'i' || a == 'o' || a == 'u')
    return 1;
  else
    return 0;
}

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

int main()
{
   char a[1000];
   int ln,i,j;
   gets(a);
  int ck=0;
   ln=strlen(a);
   for(i=0;i<ln;i++)
   {
      // static int ck=0;
       if(a[i]=='a'||a[i]=='e'||a[i]=='i'||a[i]=='o'||a[i]=='u')
        ck++;
       if(isdigit(a[i])&&a[i]!='0'&&a[i]%2!=0)
        ck++;
   }
   printf("%d\n",ck);
}

#include <stdio.h>
#include <string.h>
int main(){
	char str[50];
	scanf("%s",str);
	int len = strlen(str) , count = 0 ;
	for(int i = 0 ; i < len ; i++){
		if(str[i] == 'a' || str[i] == 'e' || str[i] == 'i' || str[i] == 'o' || str[i] == 'u' || str[i] == '1' || str[i] == '3' || str[i] == '5' || str[i] == '7' || str[i]=='9')
			count++;
	}
	printf("%d\n",count);
}

#include <stdio.h>
#include<string.h>
int main(void) {
char str[51];
int i,cnt,cntL=0;
scanf("%s",str);
for(i=0;i<strlen(str);i++){
  switch(str[i]){
    case 'e':
     case 'a':
      case 'i':
       case  'o':
        case 'u':
         case '1':
          case'3':
           case '5':
            case '7':
             case '9':
          cntL++;
  }
}
printf("%d",cntL);
}

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

char s[51];

int main(void){
    int ans=0;
    scanf("%s",s);
    char constt;
    char* ptr = &constt;
    const char test[11]="aeiou02468";
    size_t n = strlen(s);
    for(size_t i = 0; i<n; i++){
        constt=s[i];
        if(strpbrk(ptr,test)!=NULL) ans++;
    }
    printf("%d",ans);
    return 0;
}

#include<stdio.h>
int main(){
    int c;
    c=getchar();
    int counter=0;
    while(c!=EOF){
        if(c=='a' || c=='e' || c=='i' || c=='o' || c=='u'){
            counter++;
        }else if(c=='0' || c=='2' || c=='4' || c=='6' || c=='8'){
            counter++;
        }
        c=getchar();
    }
    printf("%d\n",counter);
    return 0;
}

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

int main(void)
{
    char s[100];
    gets(s);
    int l=strlen(s);
    int i;
    int j=0;
    int k;
    char s1[]="aeiou";
    for(i=0;i<l;++i){
        if(s[i]<=57){
            if(s[i]%2!=0){
                j++;
            }
            printf("%c", s[i]);
        }
        if(s[i]>=97){
            for(k=0;k<5;++k){
                if(s[i]==s1[k]){
                    j++;
                }
            }
        }
    }
    printf("%d",j);
}

#include<stdio.h>
int main()
{
int n=50, count=0,i;
//scanf("%d",&n);
//if(n>50)n=50;
char str[n];
scanf ("%s",str);
 for(i=0;i<n;i++)
     {
          if(str[i]=='a'|| str[i]=='e'|| str[i]=='i'||str[i]=='o'||str[i]=='u')
           count++;
           else if(str[i]=='1'||str[i]=='3'||str[i]=='5'||str[i]=='7'||str[i]=='9')
           count++;
           else count=count;
     }
    printf("%d\n",count) ;
    return 0;
}

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

int main()
{
    int i;
	int len=0;
    int count=0;
    char str[60];
    gets(str);
	len=strlen(str);
    for(i=0;i<len;i++)
    {
        if(str[i]=='a'||str[i]=='e'||str[i]=='i'||str[i]=='o'||str[i]=='u'||str[i]=='0'||str[i]=='2'||str[i]=='4'||str[i]=='6'||str[i]=='8')
        {
            count++;
        }
    }
    printf("%d\n",count);

    return 0;
}

#include <stdio.h>
#include<string.h>
int main(void) {
char str[51];
int i,cnt,cntL=0;
scanf("%s",str);
for(i=0;i<50;i++){
  if(str[i]>=0 && str[i]<=9){
    cnt++;
  }
  else
  switch(str[i]){
    case 'e':
     case 'a':
      case 'i':
       case  'o':
        case 'u':
          cntL++;
  }

}
printf("%d",cntL);
}

#include<stdio.h>
#include<stdlib.h>
int main(){
    int c;
    c=getchar();
    int counter=0;
    int *see=(int *)malloc(sizeof(int)*37);
    int i;
    for(i=0;i<37;i++){
        see[i]=0;
    }
    while(c!=EOF){
        if(c=='a' || c=='e' || c=='i' || c=='o' || c=='u'){
            if(!see[c-'a']){
                    counter++;
                    see[c-'a']=1;
                    //printf("c:%c\n",c);
            }
        }else if(c=='0' || c=='2' || c=='4' || c=='6' || c=='8'){
            if(!see[c-'0'+1]){
                    counter++;
                    see[c-'0'+1]=1;
                    //printf("n:%c\n",c);
            }

        }
        c=getchar();
    }
    printf("%d\n",counter);
    free(see);
    return 0;
}

#include<stdio.h>
int func(char str[])
{
    int i,count=0;
    for(i=0; str[i]!='\0';i++){
        if(str[i]%2!=0||str[i]=='a'||str[i]=='e'||str[i]=='i'||str[i]=='o'||str[i]=='u'){
            count++;
        }
    }
    return count;
}
int main()
{
    int count;
    char n[5];
    while(1==scanf("%s",n)){
        count=func(n);
        printf("%d\n",count);
        break;
    }
    return 0;
}

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

int main(){
	char s[51];
	int i,len,cck,flip=0;
	gets(s);
	len=strlen(s);
	for(i=0;i<len;i++){
		if(s[i]>=97&&s[i]<=122){
			cck=s[i];
			if(cck==97||cck==101||cck==105||cck==111||cck==117)
				flip++;

		}
		else if(s[i]>=48&&s[i]<=39){
			cck=s[i];
			if(cck%2==1)
				flip++;
		}
	}
	printf("%d",flip);
	return 0;
}

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

int main(void)
{
    int c;
    int counts = 0;

    while ((c = getchar()) != '\n' && c != '\r' && c != '\0') {
        int temp;
        if (isdigit(c)) {
            temp = c - '0';
            if (temp % 2 == 0)
                counts++;
        }else if (c == 'a' || c == 'e' || c == 'i' || c == 'o' || c == 'u')
            counts++;
    }
    printf("%d", counts);
    return 0;
}

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

char s[51]={'\0'};

int main(void){
    int ans=0;
    scanf("%s",s);
    char constt;
    char* ptr = &constt;
    const char test[11]="aeiou02468";
    size_t n = strlen(s);
    for(size_t i = 0; i<n; i++){
        constt=s[i];
        if(strpbrk(ptr,test)!=NULL) ans++;
    }
    printf("%d",ans);
    return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{
    char s[100];
    int l,i,n,count=0;
    scanf("%s",s);
    l=strlen(s);
    for(i=0;i<l;i++)
    {
      if(s[i]=='a'||s[i]=='e'||s[i]=='i'||s[i]=='o'||s[i]=='u')
      {
          count=count+1;
      }
       else if(s[i]>='1'&&s[i]<='9')
      {
          count=count+1;
      }
    }
    printf("%d",count);
}

#include<stdio.h>
#include<string.h>
main(){
  int cnt, flip=0, n;
  char str[51];
  gets(str);
  n=strlen(str);
  for(cnt=0;cnt<n;cnt++){
    switch(str[cnt]){
      case 'a':
      case 'e':
      case 'i':
      case 'o':
      case 'u':
      case 'y':
      case '1':
      case '3':
      case '5':
      case '7': flip++;
    }
  }
  printf("%d", flip);
  }

#include <stdio.h>
#include<string.h>
int main(void) {
char str[51];
int i,cnt,cntL=0;
scanf("%s",str);
for(i=0;i<strlen(str);i++){
  switch(str[i]){
    case 'e':
     case 'a':
      case 'i':
       case  'o':
        case 'u':
         case '0':
          case'2':
           case '4':
            case '6':
             case '8':
              cntL++;
  }

}
printf("%d",cntL);
}

#include<stdio.h>
int main(void)
{
    int i,num,count=0;
    char string[51];
    scanf("%s",string);
    for(i=0;string[i]!='\0';i++)
    {
        if(string[i]>=48&&string[i]<=57)
        {
            num=string[i]-48;
        }
        if(string[i]=='a'||string[i]=='e'||string[i]=='o'||string[i]=='u'||num%2!=0)
        {
            count++;
        }
    }
    printf("%d\n",count);
    return 0;
}

#include <stdio.h>

int main()
{
    char str[51];
    scanf("%s", str);
    char match[] = {"aeiou"};
    int cnt = 0;
    for(int i = 0; str[i]; ++i) {
        if((str[i] - '0') & 1) {
            ++cnt;
        } else {
            for(int j = 0; j < 5; ++j) {
                if(str[i] == match[j]) {
                    ++cnt;
                }
            }
        }
    }
    printf("%d\n", cnt);
    return 0;
}

#include<stdio.h>
#include<string.h>
int pri(char c)
{
	if(c=='a'||c=='e'||c=='i'||c=='o'||c=='u')
	return 1;
	if(c=='0'||c=='2'||c=='4'||c=='6'||c=='8')
	return 1;
	return 0;
}
int main()
{
	int n,v;
	char s[1010];
	while(scanf("%s",s)!=EOF)
	{
		v=0;
		n=strlen(s);
		for(int i=0;i<n;i++)
		{
			if(pri(s[i]))
			v++;
		}
		printf("%d\n",v);
	}
	return 0;
 }

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

void countingCards(char *str){
    int count = 0;
    int i = 0;
    while(str[i] != '\0'){
        if(str[i] == 'a' || str[i] == 'e' || str[i] == 'i' || str[i] == 'o' || str[i] == 'u'){
            count++;
        }
        else if(str[i] == '1' || str[i] == '3' || str[i] == '5' || str[i] == '7' || str[i] == '9'){
            count++;
        }
        i++;
    }
    return;
}

int main() {
    char str[51];
    scanf("%s", str);
    countingCards(str);
    return 0;
}

#include<stdio.h>
int main()
{
int n=50, count=0,i;
char str[n];
scanf ("%s",str);
 for(i=0;i<n;i++)
     {
          if(str[i]=='a'|| str[i]=='e'|| str[i]=='i'||str[i]=='o'||str[i]=='u')
           count++;
          else if(str[i]%2)
         //  else if(str[i]=='1'||str[i]=='3'||str[i]=='5'||str[i]=='7'||str[i]=='9')
           count++;
           else count=count;
     }
    printf("%d\n",count) ;
    return 0;
}

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

int main()
{
	char str[51];
	scanf("%s",str);
	int n=strlen(str),i=0,count=0,flag=0;
	if (n>1)
	{
		for (i=0;str[i]!='\0' && i<=n;i++)
		{
			int testnum=str[i]-'0';
			int testalpha=str[i]-'a';
			if (testnum>=0 && testnum<10 && testnum%2!=0)
			{
				count++;
			}
			else if (testalpha>=0 && testalpha<26)
			{
				if (testalpha==0 || testalpha==4 || testalpha==8 || testalpha==14 || testalpha==20)
				{
					count++;
				}
			}
		}
	}
	else if (n==1)
	{
		int testnum=str[i]-'0';
		int testalpha=str[i]-'a';
		if (testalpha>=0 && testalpha<26)
		{
			if (testalpha==0 || testalpha==4 || testalpha==8 || testalpha==14 || testalpha==20)
			{
				count++;
			}
		}
	}
	printf("%d\n",count);
	return 0;
}

#include<stdio.h>

int arr[1000];

int main(){

    scanf("%[^\n]",arr);
    printf("test\n");

    return 0;
}

#include<stdio.h>
#include<stdlib.h>
int main(){
    int c;
    c=getchar();
    int counter=0;
    int *see=(int *)malloc(sizeof(int)*37);
    int i;
    for(i=0;i<37;i++){
        see[i]=0;
    }
    while(c!=EOF){
        if(c=='a' || c=='e' || c=='i' || c=='o' || c=='u'){
            //字母都要看
            counter++;
        }else if(c=='0' || c=='2' || c=='4' || c=='6' || c=='8'){
            if(!see[c-'0'+1]){
                //数字看一遍就行
                    counter++;
                    see[c-'0'+1]=1;
                    //printf("n:%c\n",c);
            }

        }
        c=getchar();
    }
    printf("%d\n",counter);
    free(see);
    return 0;
}

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

int checker( char *sentence){

    int i;
    int j;
    sentence=(char*)malloc(51);

    scanf("%s", sentence);

    char nexus[10]={'a','e','i','o','u','1','3','5','7','9'};

        i=0;
        j=0;
    for(; sentence[i]; ++i){
     if (sentence[i]==nexus[i])
     j++;
    }

    return j;
}

int main(){
    char *hayker;
    hayker= (char*)malloc(51);
    scanf("%s", hayker);
    printf("%d", checker(hayker) );

    return 0;

}

#include<stdio.h>
#include<string.h>
#include<ctype.h>
int main()
{
    char temp[55];
    int i,flag1 = 0,flag2=0;
    scanf("%s",temp);
    for(i = 0;i < strlen(temp);i++)
    {
        if(isalpha(temp[i]) != 0)
        {
            switch(temp[i])
        {
           case'a':
           case'e':
           case'i':
           case'o':
           case'u':
            flag1++;
            break;
        }
        }else{
            if((temp[i] - '0')%2 == 0)
                flag2++;
        }

    }
    if(flag1 == 0)
    {
        printf("%d\n",flag1);
    }else printf("%d\n",flag1+flag2);
}

#include<stdio.h>
int main()
{
 char s[100];
 while(scanf("%s",s)!=EOF)
 {
     int t=0;
  for(int i=0;s[i]!='\0';i++)
    if(s[i]>='a'&&s[i]<='z')
        t++;
  if(t==1)
    t=0;

 printf("%d",t);

}
return 0;
}

#include<stdio.h>
#include<string.h>
int main()
{
	char str[51];
	scanf("%s",str);
	int len = strlen(str);
	int temp=0;
	int count=0;
	int arr1[127]={0};
	while(temp!=len)
	{
		if((str[temp]=='a'||str[temp]=='e'||str[temp]=='i'||str[temp]=='o'||str[temp]=='u')&& arr1[str[temp]]==0)
		{
		count++;
		arr1[str[temp]]=1;
		}
		else if ((str[temp]=='0'||str[temp]=='2'||str[temp]=='4'||str[temp]=='6'||str[temp]=='8')&& arr1[str[temp]]==0)
		{
		count++;
		arr1[str[temp]]=1;
		}
		temp++;
	}
	printf("%d\n",count);

}

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

char s[51]={'\0'};

int main(void){
    int ans=0;
    scanf("%s",s);
    char constt;

    size_t n = strlen(s);
    for(size_t i = 0; i<n; i++){
        constt=s[i];
        if(strpbrk(&constt,"aeiou02468")!=NULL) ans++;
    }
    printf("%d",ans);
    return 0;
}

#include <stdio.h>
#include <string.h>
int main()
{
    char v[51];
    scanf("%s",v);
    int i,n=strlen(v);
    int ans=0;
    for (i=0;i<n;i++)
    {
        switch(v[i])
        {
            case 'a':
            case 'e':
            case 'i':
            case 'o':
            case 'u':
            case '0':
            case '2':
            case '4':
            case '6':
            case '8':
                ans++;
                break;
            default:
                break;
        }
    }
    printf("%d\n",ans);
    return 0;
}