using System;
using System.Linq;

public class Test
{
	public static void Main()
	{
		foreach (var b in StringToByteArray("26246026"))
		{
			Console.WriteLine(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();
    }
}