7 0.4716796875 0.4638671875 0.412109375 0.810546875
8 0.462890625 0.5 0.92578125 1
8 0.466796875 0.1123046875 0.4609375 0.224609375
10 0.8427734375 0.3310546875 0.314453125 0.662109375