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