b1024 b1023 b1022 b1021
b1024 0 2.44948974278318 8.36660026534075 947.560024483937
b1023 2.44948974278318 0 1.41421356237309 372.092730377792
b1022 8.36660026534075 1.41421356237309 0 38.5356977359954
b1021 947.560024483937 372.092730377792 38.5356977359954 0