Хотите вручную ввести байты и сделать выходной файл

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<pre>//The following piece of code takes an input file, read it, output binary to decimal conversion to the screen, and re-write the the file BYTE BYTE to another location.
//For this purpose, it works great. However I would like down this process into two (2) separate independent programs.

//I would like to create a separate program that takes a MANUAL INPUT of all BYTES READ (assume that i have them all written down on a piece of paper), one after the other, and re-create the file read to another location.
//This separate program will not read in ANYTHING. All it will do is take the manual input of bytes and re-write the file to another specified location.

using System;
using System.IO;
using System.Collections;

namespace Applica
{
    static class Program
    {
        static void Main(string[] args)
        {
            DirectoryInfo da = new DirectoryInfo("C:\\Fol");
            if (!da.Exists)
            {
                Console.WriteLine("The folder '{0}' does not exist.", da.FullName);
                return;
            }
            FileInfo[] Arr = da.GetFiles();
            if (Arr.Length == 0)
            {
                Console.WriteLine("There are no files in the folder '{0}'.", da.FullName);
                return;
            }
            FileInfo ap = Arr[Arr.Length - 1];
            long Totbyte = ap.Length;
            string filePath = ap.FullName;
            Console.WriteLine("Total Bytes = {0} bytes", Totbyte);

            const int BufferSize = 1024;
            byte[] buffer = new byte[BufferSize];

            string destinationPath = Path.Combine("C:\\check", Path.GetFileName(filePath));

            using (Stream input = File.OpenRead(filePath))
            using (Stream output = File.OpenWrite(destinationPath))
            {
                int bytesRead;
                while ((bytesRead = input.Read(buffer, 0, BufferSize)) > 0)
                {
                    for (int count = 0; count < bytesRead; count++)
                    {
                        byte theByte = buffer[count];
                        string theByteInBinary = Convert.ToString(theByte, 2).PadLeft(8, '0');
                        Console.WriteLine("{0} = {1}, Count={2}", theByteInBinary, theByte, count);
                    }
                    output.Write(buffer, 0, bytesRead);
                }
            }
        }
    }
}

Что я уже пробовал:

Я уже пробовал комментировать это:

using (Stream input = File.OpenRead(filePath))

Но я получаю ошибки в других местах, которые я не знаю, как исправить. Код компилируется и отлично работает, но теперь мне действительно нужен способ ввести байты вручную и разрешить:

output.Write(buffer, 0, bytesRead);

чтобы переделать файл.

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