import java.util.Scanner;

public class Personal {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String gender = scan.nextLine();
        double years = Double.parseDouble(scan.nextLine());

        if ("m".equals(gender)) {
            if (years >= 16) {
                System.out.println("Mr.");
            } else {
                System.out.println("Master");
            }
            else if ("f".equals("Ms.")) {
                if (years >= 16) {
                    System.out.println("Ms.");
                } else {
                    System.out.println("Miss");
                }
            }
        }
    }
}