b4313 b1891 b1892 b2289
b4313 0 2843.39234014583 3788.16261530574 846.954544234813
b1891 2843.39234014583 0 1 1174.02214629878
b1892 3788.16261530574 1 0 1259.36094905313
b2289 846.954544234813 1174.02214629878 1259.36094905313 0