// 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=tolower(c);
            if(ch!='a'&&ch!='e'&&ch!'i'&&ch!='o'&&ch!='u')
            cout++;
        }
    }
    cout<<count;
    retuen 0;
}