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

int main(){
    string s;
    getline(cin, s);
    
    int count = 0;
    
    for(int i=0; i<s.length(); i++){
        char ch = tolower(s[i]);
        
        if(ch != 'a' && ch != 'e' && ch != 'i' && ch != 'o' && ch != 'u'){
            count++;
        }
    }
}

cout<<count;

return 0;
}