[1,1,1,1,2,2,2,1,2,3,2,2,3,3,3,2,3,4,4,3,5,5,4,3, 4,5,5,5,5,7,6,4,5,6,6,6,9,7,8,6,6,9,7,7,9,10,8,7, 7,9,10,9,11,12,13,8,10,11,10,11,11,12,13,11,9,14, 13,12,16,14,14,12,13,13,15,15,15,18,16,13,14,18, 15,17,20,17,21,15,15]