4 0.486328125 0.587890625 0.0322265625 0.109375 8 0.162109375 0.4599609375 0.2841796875 0.328125 8 0.5810546875 0.427734375 0.2744140625 0.328125 17 0.77734375 0.6279296875 0.4423828125 0.73828125