10 10
   -6.8304    3.9723    0.0000 C
   -7.5448    3.5598    0.0000 C
   -7.5448    2.7348    0.0000 C
   -6.8304    2.3223    0.0000 C
   -6.1159    2.7348    0.0000 C
   -6.1159    3.5598    0.0000 C
   -6.8305    4.9206    0.0000 C
   -8.2593    2.3223    0.0000 C
   -8.2593    1.4973    0.0000 C
   -8.9291    2.8473    0.0000 C
   1    2    2    2
   2    3    1    1
   3    4    1    1
   4    5    1    1
   5    6    1    1
   1    6    1    1
   1    7    1    1
   3    8    1    1
   8    9    2    2
   8   10    1    1