Reverse a number c#

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace ConsoleApplication1

{

    class Program

    {

        static void Main(string[] args)

        {

            Console.WriteLine("Enter a value");

            int a = Convert.ToInt16(Console.ReadLine());

            int rev = 0, rem = 0;

            do

            {

                rem = a % 10;

                rev = rev * 10 + rem;

                a = a / 10;

            }

            while (a > 0);

            Console.WriteLine("the reversed no. is "+rev.ToString());

          

            Console.WriteLine("end");

            Console.ReadLine();

        }

    }

}