[2,1,5,3,7,4,10,6,13,8,15,9,18,11,20,12,23,14,26,16,28,17,31,19,34,21,36,22,39,24,41,25,44,27,47,29,49,30,52,32,54,33,57,35,60,37,62,38,65,40,68,42,70,43,73,45,75,46,78,48,81,50,83]