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