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