using System;

public class Test
{
	public static void Main()
	{
		byte b = 0xAB;
var low = b & 0x0F;
var high = (b >> 4) & 0x0F;
var high2 = b >> 4;
Console.WriteLine("{0} {1}", high, low);
Console.WriteLine("{0} {1}", high2, low);
	}
}