using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Write a number between 1 and 7 to choose a day of the week.");

        string Day = Console.ReadLine();

        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("Wrong input");

         break;

            } 

    }   

}