using System;

public class Program

{

    public static void Main()

    {

        int x = 10;

​

        switch (x)

        { 

            case 5:

                Console.WriteLine("Value of x is 5");

                break;

            case 10:

                Console.WriteLine("Value of x is 10");

                break;

            case 15:

                Console.WriteLine("Value of x is 15");

                break;

            default:

                Console.WriteLine("Unknown value");

                break;

        }

    }

}