[0,0,1,2,1,3,2,4,5,3,6,7,4,8,5,9,10,6,11,7,12,13, 8,14,15,9,16,10,17,18,11,19,20,12,21,13,22,23,14, 24,15,25,26,16,27,28,17,29,18,30,31,19,32,20,33, 34,21,35,36,22,37,23,38,39,24,40,41,25,42]