#include <iostream>
#include <iostream>


using namespace std;

int main()
{
	int age;
	cin >> age;

	string gender;
	cin >> gender;

	if (gender == "f")
	{
		if (age >= 16)
		{
			cout << "Ms.";
		}
		else
		{
			cout << "Miss";

		}
	}
	else
	{
		if (age >= 16)
		{
			cout << "Mr.";
		}
		else
		{
			cout << "Master";

		}
	}



	return 0;
}