#include <iostream>
#include <vector>
using namespace std;
int main(void){
    int n;
    cin >> n;
    string a, b;
    cin >> a >> b;
    for (int i = 0; i < n; i++) {
        if (a[i] == 'o' && b[i] == 'o') {
            cout << "Lucky Turtleman" << endl;
            return 0;
        }
    }
    cout << "Unlucky Turtleman" << endl;
    return 0;
}