using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Enter a number");

        int d = Int32.Parse(Console.ReadLine());

        switch (d)

        {

            case 1:

                Console.WriteLine("Sunday");

                break;

            case 2:

                Console.WriteLine("Monday");

                break;

            case 3:

                Console.WriteLine("Tuesday");

                break;

            case 4:

                Console.WriteLine("Wednesday");

                break;

            case 5:

                Console.WriteLine("Thursday");

                break;

            case 6:

                Console.WriteLine("Friday");

                break;

            case 7:

                Console.WriteLine("Saturday");

                break;

            default:

                Console.WriteLine("It is an invalid input");

                break;

        }

    }

}