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

int main() {
    int N;
    string A, B;

    cin >> N >> A >> B;

    for (int i = 0; i < N; i++) {
        if (A[i] == 'o' && B[i] == 'o') {
            cout << "Lucky Turtleman";
            return 0;
        }
    }

    cout << "Unlucky Turtleman";
    return 0;
}