[0,1,3,2,5,4,9,8,7,6,13,12,11,10,18,17,16,15,14, 23,22,21,20,19,30,29,28,27,26,25,24,37,36,35,34, 33,32,31,44,43,42,41,40,39,38,52,51,50,49,48,47, 46,45,62,61,60,59,58,57,56,55,54,53,71,70,69,68, 67,66,65,64,63,81,80,79,78,77,76,75,74,73,72]