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