Task05CatchTheBits

namespace Task05CatchTheBits
{
    using System;
    using System.Collections.Generic;
    using System.Text;

    class Program
    {
        static void Main()
        {
            int n = int.Parse(Console.ReadLine());
            int step = int.Parse(Console.ReadLine());
            StringBuilder bits = new StringBuilder();
            for (int i = 0; i < n; i++)
            {
                byte number = byte.Parse(Console.ReadLine());
                string bitNum = Convert.ToString(number, 2).PadLeft(8, '0');
                bits.Append(bitNum);
            }

            int nextStep = 1;
            int count = 1;
            StringBuilder result = new StringBuilder();
            while (nextStep < bits.Length)
            {
                result.Append(bits[nextStep]);
                nextStep = 1 + (count * step);
                count++;
            }

            int index = 0;
            List<byte> resultBits = new List<byte>();
            bool done = false;
            while (!done)
            {
                StringBuilder currNumBits = new StringBuilder();
                for (int i = 0; i < 8; i++)
                {
                    try
                    {
                        currNumBits.Append(result[index + i]);
                    }
                    catch (Exception)
                    {
                        if (currNumBits.Length < 8)
                        {
                            if (currNumBits.Length != 0)
                            {
                                currNumBits.Append(new string('0', 8 - currNumBits.Length));
                            }
                        }

                        done = true;
                        break;
                    }
                }
                if (currNumBits.Length != 0)
                {
                    resultBits.Add(Convert.ToByte(currNumBits.ToString(), 2));
                }

                index += 8;
            }

            for (int i = 0; i < resultBits.Count; i++)
            {
                Console.WriteLine(resultBits[i]);
            }
        }
    }
}