b2456 b2455 b2454 b2453
b2456 0 43.2666153055679 14 6.92820323027551
b2455 43.2666153055679 0 4.47213595499958 8.77496438739212
b2454 14 4.47213595499958 0 1
b2453 6.92820323027551 8.77496438739212 1 0