#include <iostream>
#include <bits/stdc++.h>
using namespace std;
int main() {
    char niza[205];
    cin >> niza;

    int brojac = 0;
    for(int i = 0; i < strlen(niza) - 1; i++) {
        if(niza[i] != 'a' and niza[i] != 'e' and niza[i] != 'i' and niza[i] != 'o' and niza[i] != 'u' and niza[i + 1] != 'a' and niza[i + 1] != 'e' and niza[i + 1] != 'i' and niza[i + 1] != 'o' and niza[i + 1] != 'u') {
            brojac++;
        }
    }

    cout << brojac << endl;
    return 0;
}