using System;

using System.Linq;

public class Program

{

    static String input = "0102030405060708090a0b0c0d0e0f";

    public static void Main()

    {

        byte[] data = StringToByteArray(input);

        for (int i = 0; i < input.Length; i += 2) {

            Console.Write("0x{0}{1}, ", input[i], input[i + 1]);

        }

        //foreach (byte b in data) {

        //  Console.Write("0x{0:X2}, ", b);

        //}

    }

​

    public static byte[] StringToByteArray(string hex) {

        return Enumerable.Range(0, hex.Length)

                         .Where(x => x % 2 == 0)

                         .Select(x => Convert.ToByte(hex.Substring(x, 2), 16))

                         .ToArray();

    }

}