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