// editor2
#include<iostream>
using namespace std;
int main(){
    string s;
    getline(cin,s);
    
    int count =0;
    for(char c : s){
        if(isalpha(c)){
            char ch=tolwer(c);
            if(ch!='a' && ch!='e' && ch!='i' && ch!='o' && ch!='u')
            count++;
        }
    }
    cout<<count;
    return 0;
}