using System;

​

public class Program

  {

    public static void Main()

    {

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

        var gender = Console.ReadLine();

        if (age < 16)

        {

            if(gender == "m")Console.WriteLine("Master");

            else if ( gender == "f")Console.WriteLine("Miss");

        }

        else

        {

            if(gender == "m")Console.WriteLine("Mr.");

            else if ( gender == "f")Console.WriteLine("Ms.");

        }

    }

}