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