b0759 b0758 b0757 b0756
b0759 0 1 1.41421356237309 12.2474487139159
b0758 1 0 2 18
b0757 1.41421356237309 2 0 1.73205080756888
b0756 12.2474487139159 18 1.73205080756888 0