using System;

public class Program
{
    public static void Main()
    {
        double age = double.Parse(Console.ReadLine());

        char gender=char.Parse (Console.ReadLine());


        if ( gender == 'm'){
            if ( age < 16) {
                 Console.WriteLine("Mr.");
            } else {
                Console.WriteLine("Master");
            }
        } else if ( gender == 'f') {
            if ( age < 16) {
                 Console.WriteLine("Ms.");
            } else {
                Console.WriteLine("Miss");
            }
        }



    } // main bracket
}