4 0.1015625 0.421875 0.203125 0.84375
4 0.2861328125 0.4423828125 0.361328125 0.884765625
4 0.564453125 0.4296875 0.3125 0.859375
4 0.8388671875 0.435546875 0.322265625 0.84765625