using System;                   

public class Program

{

    public static void Main()

    {

        double age = double.Parse(Console.ReadLine());

        string gendre = Console.ReadLine();

        if (gendre=="m")

        {

          if(age>=16)

            {

                Console.WriteLine("Mr.");

            }

          else 

            {

              Console.WriteLine("Master");

            }

        }

        else 

            {

                if (age>=16)

                {

                    Console.WriteLine("Ms");

                }

                else

                {

                    Console.WriteLine("Miss");

                }

            }

    }

}