using System;

using System.Text;

public class Program

{

    public static void Main()

    {

        string command = "<STX>01#DR#0#<ETX>";

        byte[] bytes = Encoding.ASCII.GetBytes(command);

        byte bcc = 0;

​

        if (bytes != null && bytes.Length > 0) {

            // Exclude SOH during BCC calculation

            for (int i = 1; i < bytes.Length; i++) {

                bcc ^= bytes[i];

            }

        }

        foreach (byte b in bytes) {  

           Console.WriteLine(b);  

        }

        Console.WriteLine(bcc); 

    }

}