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