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