[0,1,2,2,2,2,3,3,4,5,5,5,5,6,6,7,7,7,7,8,8,8,9,10, 10,11,11,11,11,12,12,12,12,13,14,14,14,15,15,15, 15,15,15,15,16,16,16,16,16,16,16,16,16,16,17,18, 19,19,20,21,21,22,22,23,23,24,24,25,26,27]