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

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

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

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