#include<stdio.h>
int main(){
    char str[200];
    scanf("%s",str);
    int c=0,i;
    while(str[i]!='\0'){
        if(str[i]=='a' || str[i]=='e' || str[i]=='i' || str[i]=='o' ||
        str[i]=='u' || str[i]=='A' || str[i]=='E' || str[i]=='I' || 
        str[i]=='O' || str[i]=='U'){
            c++;
        }
    }
    printf("%d",c);
    return 0;
}