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