b2808 b2904 b2903 b2905
b2808 0 3904.29878467312 2739.15607441416 2576.73048648864
b2904 3904.29878467312 0 2 1
b2903 2739.15607441416 2 0 1.41421356237309
b2905 2576.73048648864 1 1.41421356237309 0