using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Enter the day of the week");

        var day=int.Parse(Console.ReadLine());

        string[]daysOfweek={"Monday","Tuesday","Wendsday","Thursday","Friday","Saturday","Sunday" };

            if(day<0 ||day>7)

        {

                        Console.WriteLine("Invalid");

        }   

    else

        {

            Console.WriteLine(daysOfweek[day-1]);       

        }

​

​

    }

}