NameTitles

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner Scanner = new Scanner(System.in);

        double years = Double.parseDouble(Scanner.nextLine());
        String g = Scanner.nextLine();

        if(g.equalsIgnoreCase("m")){
            if(years<16){
                System.out.println("Master");
            }else{
                System.out.println("Mr.");
            }
        }else if(g.equalsIgnoreCase("f")){
            if(years<16){
                System.out.println("Miss");
            }else{
                System.out.println("Ms.");
            }
        }
    }
}