[0,1,2,2,3,3,4,4,4,4,5,5,6,6,6,6,7,7,8,8,8,8,9,9, 9,9,9,9,10,11,12,12,12,12,12,12,13,13,13,13,14,15, 16,16,16,16,17,17,17,17,17,17,18,18,18,18,18,18, 19,19,20,20,20,20,20,21,22,22,22,23,24,24,25,25, 25,25,25,26]