[0,-1,0,1,0,1,0,-1,0,1,2,3,2,1,2,3,2,3,2,3,2,3,2, 1,0,1,2,1,2,1,2,1,0,-1,0,1,2,1,2,3,2,3,4,3,4,5,4, 5,4,5,4,5,4,3,2,3,4,5,6,5,4,5,4,5,4,5,4,3,2,3,2,3, 4,5,4,5,6,7,6,5,4,5,6,5,6,5,4]