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