10 0.5078125 0.810546875 0.984375 0.37890625
15 0.73828125 0.6181640625 0.412109375 0.345703125
8 0.4296875 0.6318359375 0.337890625 0.14453125
8 0.87109375 0.900390625 0.2578125 0.16015625