4 0.357421875 0.51953125 0.166015625 0.8642578125
4 0.5263671875 0.521484375 0.16796875 0.8564453125
10 0.4990234375 0.794921875 0.998046875 0.4052734375
10 0.0869140625 0.51171875 0.173828125 0.255859375