using System;

public class Program

{

    public static void Main()

    {

        int number = int.Parse(Console.ReadLine());

        switch (number)

        {

            case 1:

                    Console.WriteLine("Monday");

                break;

            case 2:

                    Console.WriteLine("Tuesday");

                break;

            case 3:

                    Console.WriteLine("Wednesday");

                break;

            case 4:

                    Console.WriteLine("Thursday");

                break;

            case 5:

                    Console.WriteLine("Friday");

                break;

            case 6:

                    Console.WriteLine("Saturday");

                break;

            case 7: 

                    Console.WriteLine("Sunday");

                break;

            default:

                Console.WriteLine("Error");

            break;

        }

    }

}

​