7 0.2626953125 0.6982421875 0.3603515625 0.490234375
7 0.6708984375 0.724609375 0.4873046875 0.3837890625
7 0.587890625 0.5498046875 0.46484375 0.6669921875
8 0.4990234375 0.5029296875 0.9970703125 0.986328125