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