import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner (System.in);
        double age = scanner.nextDouble();
        String gen = scanner.nextLine();


        switch (gen){
            case "m":
                if (age >= 16) {
                    System.out.println("Mr.");
                }else {
                    System.out.println("Master");}
                break;

            case "f":
                if (age >= 16) {
                    System.out.println("Ms.");
                }else {
                    System.out.println("Miss");}
                break;
        }
    }
}