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.");

    }

}}