7 0.5517578125 0.5908203125 0.1884765625 0.248046875
8 0.779296875 0.6142578125 0.2421875 0.765625
8 0.9326171875 0.9521484375 0.1103515625 0.0908203125
10 0.337890625 0.76171875 0.67578125 0.4716796875