#include <bits/stdc++.h>
using namespace std;

int main() {
	int N;
	string a, b;
	cin >> N >> a >> b;
	string ans = "Unlucky Turtleman";
	for( int i = 0; i < N; i++ ) {
		if( a[i] == 'o' && b[i] == 'o' ) ans = "Lucky Turtleman";
	}
	cout << ans << endl;
}