#include<iostream>
#include<cctype>;
using namespace std;

int main() {
    string s;
    getline(cin, s);
    
    int count = 0;
    
    for (char ch : s) {
        ch = tolower(ch);
        
        if (isalpha(ch)) {
            
            if (!(ch=='a' ||ch=='e' ||ch=='i' ||ch=='o' ||ch=='u')) {
                count++;
            }
        }
    }
    cout << count;
    return 0;
}