[1,2,3,5,4,6,7,8,9,11,10,13,12,14,17,15,16,19,20, 18,23,22,21,24,25,26,27,28,29,31,30,32,34,33,35, 36,39,37,38,40,42,43,41,44,47,46,45,49,48,50,51, 53,52,55,54,58,56,57,59,63,60,61,62,66,64,67,65, 71,68,70,69,73]