#include<iostream>
using namespace std;
int main() {
    char a;
    while (cin >> a) {
    if (a == 'a' || a == 'A' || a == 'E' || a == 'e' || a == 'i' || a == 'I' ||a == 'O' || a == 'o' || a == 'u' || a == 'U')cout<<"Vowel";
    else cout<<"Consonant";
    cout<<endl;
    }
    return 0;
}