C#

<pre>/*
Hello friends, I am trying to show my students that a computer program is an arrangement of numbers. My kids love only video games and sports, but not every child is going to go on to play and make a living in sports. I am trying to get them interested in something other than sports. I am trying to engage then in something that they like that is more practical for them in the long run. I am not a computer programmer, but I know the importance of it. What you see here is what I have learn and read in books, but it is not working. I have tried many times to gain help in fixing this code, but no one in the forum wanted to help. They only wanted to make comments to show there arrogance. I have deleted some of it in order to make it short and simple. I can do some basic things, but now its getting very complicated. All i am attempting to do is read a file piece by piece, turn each byte into a number and SHOW IT, turn the number back to a byte and SHOW IT, then reassemble back the file and save it to another location the computer. That's all the kids want to see.
*/ 
using System;
using System.IO;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Applica
{
    class Program
    {
        static void Main(string[] args)
        {
            DirectoryInfo da = new DirectoryInfo("C:\\Folder1");
            FileInfo[] Arr = da.GetFiles();
            FileInfo ap = Arr[Arr.Length - 1];
            long Totbyte = ap.Length;
            string filePath = ap.FullName;
            Console.WriteLine("Total Bytes = {0} bytes", Totbyte);
            string temPath = Path.GetTempFileName();
            string temPath2 = Path.GetTempFileName();
            const int BufferSize = 1024;
            byte[] buffer = new byte[BufferSize];

            using (BufferedStream input = new BufferedStream(File.OpenRead(temPath)))
            {
                int bytesRead;
                using (BufferedStream output = new BufferedStream(File.OpenWrite(temPath2)))
                {
                    while ((bytesRead = input.Read(buffer, 0, BufferSize)) > 0)
                    {
                        // Convert the bytes to decimals:
                        decimal[] arry = new decimal[Totbyte];
                        for (int count = 0; count < buffer.Length; count++)
                        {
                            arry[count] = buffer[count];
                            Console.WriteLine("{0}={1}",arry[count],buffer[count]);//THE VISUAL PRESENTATION DOES NOT WORK
                        }
                        // Convert the decimals back to bytes:
                        byte[] data2 = new byte[Totbyte];
                        for (int count = 0; count < arry.Length; count++)
                        {
                            data2[count] = (byte)arry[count];
                            Console.WriteLine("{0}={1}",data2[count],arry[count]);//THE VISUAL PRESENTATION DOES NOT WORK
                        }
                        string filePath2 = Path.Combine("C:\\check", Path.GetFileName(filePath));//THE OUTPUT FILE DOES NOT WORK
                        output.Write(buffer, 0, bytesRead);
                    }
                }
            }
        }
    }
}