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