#include <bits/stdc++.h>
#include<iostream>
#include<map>
#include<vector>
#include <algorithm>
#include<math.h>
#include <iomanip>
#include<set>
#include <numeric>
#include<string>
using ll = long long;
using namespace std;

int main()
{
    ll n;
    string a, b;
    cin >> n >> 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;
}