using System;

using System.Text;                  

public class Program

{

    public static void Main()

    {

        var ba = new byte[] { 0, 0, 0 };

        StringBuilder hex = new StringBuilder(ba.Length * 2);

  foreach (byte b in ba)

    hex.AppendFormat("{0:x2} ", b);

  Console.WriteLine(hex.ToString().Trim());

    }

}