using System;

public class Program

{

    public static void Main()

    {

        float x;

        float y = 1f;

        float comparsionVal = 0.5f;

        string xString = Console.ReadLine();

        if (float.TryParse(xString, out x))

        {

            if  (y/x == comparsionVal)

            {

                Console.WriteLine("Batya govorit malaca");

            }

            else

            {

                Console.WriteLine("No luck, son");

            }

        }

    }

}