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);
}
}
dXNpbmcgU3lzdGVtOwoKcHVibGljIGNsYXNzIFRlc3QKewoJcHVibGljIHN0YXRpYyB2b2lkIE1haW4oKQoJewoJCWJ5dGUgYiA9IDB4QUI7CnZhciBsb3cgPSBiICYgMHgwRjsKdmFyIGhpZ2ggPSAoYiA+PiA0KSAmIDB4MEY7CnZhciBoaWdoMiA9IGIgPj4gNDsKQ29uc29sZS5Xcml0ZUxpbmUoInswfSB7MX0iLCBoaWdoLCBsb3cpOwpDb25zb2xlLldyaXRlTGluZSgiezB9IHsxfSIsIGhpZ2gyLCBsb3cpOwoJfQp9