#include<iostream>
#include<string>
using namespace std;
int main()
{
    string s;
    getline(cin, s);
    if(s.length()<=1|| s.length()=>1000){
        cout<<"Invalid input";
        return 0;
    }
    int count=0;
    for(char c : s){
        if(isalpha(c)){
            char ch=tolower(c);
            if(ch!='a'&& ch!='e' && ch!='i' && ch!='0' && ch!='u')
            count++;
        }
    }
    cout<<count;
    return 0;
}