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