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