Catch the Bits

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

namespace novo2
{
    class Program
    {
        static void Main(string[] args)
        {

            int n;
            n = int.Parse(Console.ReadLine());
            int step;
            step = int.Parse(Console.ReadLine());
            string binary = "";
            string b = "";
            int f;
            int newNumber;
            string firstNumber = "";
            string secondNumber = "";
            for (int i = 0; i < (n); i++)
            {
                f = 1 + (i * step);
                newNumber = int.Parse(Console.ReadLine());
                binary = binary + Convert.ToString(newNumber, 2).PadLeft(8, '0');
            }
            for (int i = 0; (1 + (i * step)) < (8 * n); i++)
            {

                    f = 1 + (i * step);
                    b += binary[f];


            }
            int count = b.Length;
            for (int j = 0; j < count; j++)
            {
                if (j < 8)
                {
                    firstNumber = firstNumber + b[j];
                }
                else
                {
                    secondNumber = secondNumber + b[j];
                }
            }
            int firstValue;
            int secondValue;
            firstNumber = firstNumber.PadRight((8), '0');
            firstValue = Convert.ToInt32(firstNumber, 2);
            secondNumber = secondNumber.PadRight((8), '0');
            secondValue = Convert.ToInt32(secondNumber, 2);
            Console.WriteLine(firstValue);
            if (secondValue > 0)
            {
                Console.WriteLine(secondValue);
            }
        }
    }
}