7 0.4931640625 0.7080078125 0.375 0.333984375
15 0.421875 0.3408203125 0.4453125 0.681640625
15 0.0498046875 0.3388671875 0.099609375 0.650390625
15 0.716796875 0.25 0.375 0.5
15 0.9423828125 0.2490234375 0.115234375 0.498046875