[-1,0,0,1,1,1,1,2,2,2,2,2,2,3,3,3,3,4,4,4,4,4,5,5, 4,5,5,6,6,7,5,6,6,6,6,6,6,7,7,7,7,8,7,8,8,9,8,7,8, 8,9,9,10,9,9,9,9,10,10,11,11,11,10,10,11,11,10,11, 10,11,11,11,11,12,12,12,12,12,13,12,12]