#include<bits/stdc++.h>
using namespace std;
using ll = long long;
int main(){
    int n;
    cin>>n;
    string s,t;
    cin>>s>>t;
    bool fn = false;
    for(int i = 0;i<n;i++){
        if(s[i]=='o'&&t[i]=='o') fn = true;
    }
    cout<<(fn?"Lucky Turtleman\n":"Unlucky Turtleman\n");
}