using System;

public class DaysOfTheWeek

{

    public static void Main()

    {

        Console.WriteLine("Enter A Number");

        int day = readKb();

        switch (day) 

            {

                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("That isn't a number 1-7");

                    break;

}

    }

    static int readKb()

    {

        String s = Console.ReadLine();

        int i;

        bool test = int.TryParse(s, out i);

        while (!test)

        {

            Console.WriteLine("Try Again.... Something Went Wrong With The Input");

            s = Console.ReadLine();

            test = int.TryParse(s, out i);

        }

        return i;

    }

}