#include <bits/stdc++.h>
//#include <atcoder/all>
#define rep(i , n) for(int i = 0; i < n; i++)
#define endl '\n'
using namespace std;
//using namespace atcoder;
typedef long long ll;

int main () {
	int n;
    string s , t;
    cin >> n >> s >> t;
    rep(i , n){
        if(s[i] == 'o' && t[i] == 'o'){
            cout << "Lucky Turtleman" << endl;
            return 0;
        }
    }
    cout << "UnLucky Turtleman" << endl;
	return 0;
}