b1891 b1892 b1922 b1923 b1920 b1921
b1891 0 2 2749.37956637493 3817.75313502589 618.834388184755 3933.9865276841
b1892 2 0 2129.38113075137 3501.69787388918 298.278393451487 4211.34990234722
b1922 2749.37956637493 2129.38113075137 0 361.662826400502 658.829264680919 310.286963954337
b1923 3817.75313502589 3501.69787388918 361.662826400502 0 1196.06855990783 63.9921870231046
b1920 618.834388184755 298.278393451487 658.829264680919 1196.06855990783 0 537.686711756949
b1921 3933.9865276841 4211.34990234722 310.286963954337 63.9921870231046 537.686711756949 0