#include<bits/stdc++.h>
using namespace std;
using ll = long long;
#define rep(i,m,n) for(int i=m; i<n; ++i)
#define repl(i,m,n) for(ll i=m; i<n; ++i)

int main(){
    int N;
    string A, B;
    cin >> N >> A >> B;

    rep(i, 0, N){
        if(A[i] == 'o' && B[i] == 'o'){
            cout << "Lucky Turtleman" << endl;
            return 0;
        }
    }
    cout << "Unlucky Turtleman" << endl;
    
    return 0;
}