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