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