#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
using ll = long long;

int N;
char A[110], B[110];
int main() {
  cin >> N;
  for (int i = 1; i <= N; i++) cin >> A[i];
  for (int i = 1; i <= N; i++) cin >> B[i];
  for (int i = 1; i <= N; i++) {
    if (A[i] == 'o' && B[i] == 'o') {
      cout << "Lucky Turtleman" << endl;
      return 0;
    }
  }
  cout << "Unlucky Turtleman" << endl;
  return 0;
}