#include <iostream>
#include <cstring>
#include <ctype.h>
using namespace std;

int main() {
    char s[1000];
    cin >> s;

    int result = 0;
    for(int i = 0; i < strlen(s) - 1; i++) a{
        if(s[i] == 'a' && s[i + 1] == 'E') {
            result++;
        }
        if(s[i] == 'o' && s[i + 1] == 'Y') {
            result++;
        }
        if(s[i] == 'Q' && s[i + 1] == 'w') {
            result++;
        }
    }
    cout << result << endl;
    return 0;
}