using System.Numerics;

public class Program
{
    public static void Main()
    {

        //BigInteger num = BigInteger.Parse(Console.ReadLine() ?? string.Empty);
        int num = int.Parse(Console.ReadLine() ?? string.Empty);
        //string[] moji = (Console.ReadLine() ?? string.Empty).Trim().Split(' ');
        string moji = Console.ReadLine() ?? string.Empty;
        string str = Console.ReadLine() ?? string.Empty;


        for (int i = 0; i < num; i++)
        {
            if (moji[i] == 'o' && str[i] == 'o')
            {
                Console.WriteLine("Lucky Turtleman");
                return;
            }
        }
        Console.WriteLine("Unlucky Turtleman");


    }
}