[1,2,3,4,1,6,7,8,2,3,11,12,4,14,15,16,5,18,6,20,7, 22,23,24,8,9,27,10,11,30,31,32,12,34,35,36,13,38, 39,40,14,42,43,44,15,16,47,48,17,18,19,52,20,54, 21,56,22,58,59,60,23,62,63,24,25,66,67,68,26,70, 71,72,27,74,75]