7 0.578125 0.6887019230769231 0.125 0.1346153846153846
8 0.5829326923076923 0.7644230769230769 0.14423076923076922 0.055288461538461536
15 0.5865384615384616 0.8064903846153846 0.03125 0.08653846153846154