#include <iostream>
using namespace std;

int main(){
	char s;
	cin>>s;
	if (s == 'a' || s == 'e' || s == 'i' || s == 'o' || s == 'u' || s == 'y'){
		cout<<"tak";
	}
		else{
			cout<<"nie";
		}
	return 0;
}