[0,3,2,1,4,7,6,5,8,11,10,9,12,15,14,13,16,19,18, 17,20,23,22,21,24,27,26,25,28,31,30,29,32,35,34, 33,36,39,38,37,40,43,42,41,44,47,46,45,48,51,50, 49,52,55,54,53,56,59,58,57,60,63,62,61,64,67,66, 65,68,71,70,69,72]