Bits Exchange

using System;

namespace BitsExchange
{
    class BitsExchange
    {
        static void Main()
        {
            Console.Write("n = ");
            UInt32 n = UInt32.Parse(Console.ReadLine());
            Console.WriteLine("Before: {0}",Convert.ToString(n,2).PadLeft(32,'0'));
            UInt32 small = n & (7 << 3);
            UInt32 large = n & (7 << 24);
            n = (n ^ (small | large)) | (large >> 21) | (small << 21);
            Console.WriteLine("After: \t{0}\nResult: {1}",Convert.ToString(n,2).PadLeft(32,'0'),n);
        }
    }
}