#include<stdio.h>

int main() {
    char s[1000];
    int vowel = 0;
    scanf ("%s", &s);

    for (int i = 0; s[i]!='\0'; i++)
        if (s[i] == 'a' || s[i] == 'e' || s[i] == 'i' || s[i] == 'o' || s[i] == 'u' || s[i] == 'A' || s[i] == 'E' || s[i] == 'I' || s[i] == 'O' || s[i] == 'U')
            vowel++;

    printf ("%d", vowel);
    return 0;
}