#include<iostream>
using namespace std;
int main()
{
    string s;
    getline(cin,s);
    int c=0;
    for( char x : s)
    if (string("aeiouAEIOU").find(x) ! = string::npos) c++;
    if(c) cout<<c;
    else cout<<"Invalid input";
    return 0;
}