using System;

public class Program

{

    public static void Main()

    {

        int weeknumber;

     //Reading week no from user

     Console.WriteLine("Enter week number(1-7):");

     weeknumber = Convert.ToInt16(Console.ReadLine());

     switch (weeknumber)

    {

        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("Invalid input! Please enter week no. between 1-7.");

            break;

      }

    Console.ReadLine();

    }

}