# type topo
# cell     2.513600     2.513600     3.908200    90.000000    90.000000   120.000000
18
  1 o     -0.756845    1.888192    0.408407   0                             2/16       3/4      5/15       6/3      11/4     12/16 
  2 o      0.000000    0.577298    0.408407   0                             1/10       3/1       4/3      5/12     10/13      11/4 
  3 o      0.756845    1.888192    0.408407   0                             1/22      2/25      4/15      6/12     10/13     12/16 
  4 o      2.013645    0.288649    3.499793   0                             2/23      3/11      5/22      6/10     14/10     15/22 
  5 o      0.499955    0.288649    3.499793   0                             1/11      2/14       4/4       6/1     13/13     14/10 
  6 o      1.256800    1.599543    3.499793   0                             1/23      3/14      4/16      5/25     13/13     15/22 
  7 o      1.756755    0.436965    1.711140   0                             8/13      9/13     11/13     12/13     17/10     18/22 
  8 o      1.256800    1.302912    1.711140   0                             7/13      9/13     10/13     11/13     16/22     17/13 
  9 o      0.756845    0.436965    1.711140   0                             7/13      8/13     10/13     12/13     16/10     18/13 
 10 o      0.756845    1.014263    0.894326   0                             2/13      3/13      8/13      9/13     11/13     12/13 
 11 o      1.756755    1.014263    0.894326   0                             1/22      2/22      7/13      8/13     10/13     12/13 
 12 o      1.256800    0.148315    0.894326   0                             1/10      3/10      7/13      9/13     10/13     11/13 
 13 o      0.499955    1.162578    3.013874   0                             5/13      6/13     14/13     15/13     17/13     18/13 
 14 o     -0.000000    2.028526    3.013874   0                             4/16      5/16     13/13     15/13     16/13     17/13 
 15 o     -0.499955    1.162578    3.013874   0                              4/4       6/4     13/13     14/13     16/13     18/13 
 16 o     -0.499955    1.739877    2.197060   0                              8/4      9/16     14/13     15/13     17/13     18/13 
 17 o      0.499955    1.739877    2.197060   0                             7/16      8/13     13/13     14/13     16/13     18/13 
 18 o     -0.000000    0.873929    2.197060   0                              7/4      9/13     13/13     15/13     16/13     17/13