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