Reversing The Given Number By User

using System;

using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Reversing_Number
{
    class Program
    {
        static void Main(string[] args)
        {
            int a; int revnum=0;
            Console.WriteLine("Enter Your Number");
            a = Convert.ToInt32(Console.ReadLine());
            while (a != 0)
            {
                revnum = revnum * 10;
                revnum = revnum + a % 10;
                a = a /10;

            }
            Console.WriteLine("Reverse Number is: "+ revnum);
            Console.ReadLine();
        }
    }
}