b2111 b2110 b2109 b2108
b2111 0 4 58 47.5709995690652
b2110 4 0 13.2664991614216 21.6333076527839
b2109 58 13.2664991614216 0 20.1990098767242
b2108 47.5709995690652 21.6333076527839 20.1990098767242 0