[0,1,0,1,2,1,0,1,0,1,2,3,4,3,2,1,2,1,0,1,0,1,0,1, 0,1,2,3,4,5,6,5,4,5,6,5,6,5,4,3,4,3,2,3,4,3,2,3,4, 5,4,3,2,3,2,1,0,1,0,1,0,-1,0,1,2,3,2,1,0,1,2,3,2, 3,4,5,6,7,8,9,8,9,10,9,10,11,10,11,10,11,12,11,12, 11,10,9]