[0,0,1,1,2,2,3,4,4,5,5,6,6,7,8,8,9,9,10,10,11,12, 12,13,13,14,15,15,16,16,17,17,18,19,19,20,20,21, 21,22,23,23,24,24,25,25,26,27,27,28,28,29,30,30, 31,31,32,32,33,34,34,35,35,36,36,37,38,38,39,39, 40,40,41,42,42,43]