#include<iostream>
#include<string>
#include<cctype>
using namespace std;
int main(){
    string s;
    getline (cin,s);
    int count=0;
    for (int i=0;i<s.length();i++){
        char ch =totower(s[i]);
        if(isalpha (ch)&&ch!='a'&&ch!='e'&&ch!='i'&&ch!='o'&&ch!='u'){
            count++;
        }
    }
    cout<<count;
    return 0;
}