[1,3,2,6,5,4,10,9,8,7,15,14,13,12,11,21,20,19,18, 17,16,28,27,26,25,24,23,22,35,34,33,32,31,30,29, 36,43,42,41,40,39,38,45,37,44,52,51,50,49,48,55, 47,54,46,53,62,61,60,59,66,58,65,57,64,56,63,73, 72,71]