10 0.4990234375 0.642578125 0.990234375 0.708984375
4 0.40234375 0.2197265625 0.0478515625 0.1630859375
7 0.5244140625 0.6357421875 0.5 0.50390625
8 0.8154296875 0.21484375 0.3662109375 0.4296875