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