#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] == 'o' and b[i] == 'o'){
			cout << "Lucky Turtleman";
			return 0;
		}
	}
	cout << "Unlucky Turtleman";
}