10 11
   -2.5000    1.5170    0.0000 C
   -3.2145    1.1045    0.0000 C
   -3.2145    0.2795    0.0000 C
   -2.5000   -0.1331    0.0000 C
   -1.7855    0.2795    0.0000 C
   -1.7855    1.1045    0.0000 C
   -2.2865    0.6638    0.0000 C
   -1.4698    1.8667    0.0000 C
   -3.0009    1.0763    0.0000 C
   -3.0834    0.4503    0.0000 C
   1    2    1    1
   2    3    1    1
   3    4    1    1
   4    5    1    1
   1    6    1    1
   4    7    1    1
   1    7    1    1
   5    6    1    1
   6    8    2    2
   7    9    1    1
   7   10    1    1