using System;

​

public class Program

{

    public static void Main()

    {

        int number = 4;

        switch (number)

        {

            case 3:

                Console.WriteLine("Case: Three");

                break;

            case 1:

                Console.WriteLine("Case: One");

                break;

            case 2:

                Console.WriteLine("Case: Two");

                break;

            default:

                    Console.WriteLine("Unknown number!");

                break;

        }

    }

}