[0,1,2,3,4,4,3,2,1,0,1,2,3,4,5,3,2,1,0,1,2,3,4,5, 6,2,1,0,1,2,3,4,5,6,7,1,0,1,2,3,4,5,6,7,8,0,1,2,3, 4,4,3,2,1,0,8,7,6,5,4,3,2,1,0,1,7,6,5,4,3,2,1,0,1, 2,6,5,4,3,2,1,0,1,2,3,5,4,3,2,1,0,1,2,3,4,4,3,2,1, 0,1,2,3,4,5]