using System;

public class Program

{

    public static void Main()

    {

        byte[] a = new [] {

          (byte)0x03,

          (byte)0x23,

          (byte)0x01,

          (byte)0x13,

          (byte)0x68,

          (byte)0xCC,

        };

        var s = Convert.ToHexString(a);

        Console.WriteLine(s);

    }

}