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