Exam 9. Friend Bits

namespace _5.FriendBits
{
    using System;

    public class FriendBits
    {
        public static void Main(string[] args)
        {
            checked
            {
                uint num = uint.Parse(Console.ReadLine());

                uint friendBits = 0;
                uint aloneBits = 0;
                for (int i = 31; i >= 0; i--)
                {
                    uint currentBitValue = (num >> i) & 1;
                    uint leftBitValue = (num >> (i + 1)) & 1;
                    uint rightBitValue = (num >> (i - 1)) & 1;

                    if ((i < 31 && currentBitValue == leftBitValue) || (i > 0 && currentBitValue == rightBitValue))
                    {
                        friendBits = (friendBits << 1) | currentBitValue;
                    }
                    else
                    {
                        aloneBits = (aloneBits << 1) | currentBitValue;
                    }
                }

                Console.WriteLine(friendBits);
                Console.WriteLine(aloneBits);
            }
        }
    }
}