#include <bits/stdc++.h>   using namespace std;   long long n, s, d;   bool f(char x) {     if (x ==  a  || x ==  e  || x ==  i  || x ==  o  || x ==  u ) return true;     if (x >=  0  && x <=  9 ) {       int p = x -  0 ;       if (p % 2 == 1) return true;     }     return false;   }   int main() {     string s;     cin >> s;     int d = 0;     for (int i = 0; i < s.length(); i++) {       if (f(s[i])) d++;     }     cout << d;     return 0;   }   