[1,3,2,6,5,4,10,9,8,7,15,14,13,12,11,21,20,19,18, 17,16,28,27,26,25,24,23,22,36,35,34,33,32,31,30, 29,45,44,43,42,41,40,39,38,37,55,54,53,52,51,50, 49,48,47,46,66,65,64,63,62,61,60,59,58,57,56,78, 77,76]