# type topo
# cell     3.224700     3.224700     1.414300    90.000000    90.000000    90.000000
16
  1 v      0.267328    2.840961    0.176787   0                              6/4      7/12      8/16       9/6      12/3      12/4     15/13     15/12 
  2 v      1.345022    0.383739    0.883937   0                             5/13      7/10      8/13     10/10     11/13     11/14     16/13     16/14 
  3 v      2.802264    1.073503    0.530362   0                             5/13      6/13      8/22      9/13      9/12     11/13     14/22     14/21 
  4 v      2.034786    2.151197    1.237512   0                             5/13      6/14      7/13     10/13     10/14     12/13     13/13     13/14 
  5 v      1.879678    1.228611    0.883937   0                             2/13      3/13      4/13     11/13     11/14     13/13     16/13     16/14 
  6 v      2.957372    1.996089    0.176787   0                             1/22      3/13      4/12     12/13     12/12     14/21     15/22     15/21 
  7 v      1.189914    2.685853    1.237512   0                             1/14      2/16      4/13     10/13     10/14     13/13     13/14     15/13 
  8 v      0.422436    0.538847    0.530362   0                             1/10      2/13       3/4       9/4       9/3     14/13     14/12     16/13 
  9 v      2.957372    0.383739    1.237512   0                             1/20      3/13      3/14      8/22      8/23     11/14     12/10     14/22 
 10 v      1.879678    2.840961    0.530362   0                             2/16      4/13      4/12      7/13      7/12     11/16     12/13     13/13 
 11 v      2.034786    0.538847    0.176787   0                             2/13      2/12      3/13      5/13      5/12      9/12     10/10     16/13 
 12 v      2.802264    2.685853    0.883937   0                             1/23      1/22      4/13      6/13      6/14      9/16     10/13     15/22 
 13 v      1.345022    1.996089    0.530362   0                             4/13      4/12      5/13      7/13      7/12     10/13     15/13     16/13 
 14 v      0.267328    1.228611    1.237512   0                              3/4       3/5       6/5      8/13      8/14       9/4     15/13     16/14 
 15 v      0.422436    2.151197    0.883937   0                             1/13      1/14       6/4       6/5      7/13      12/4     13/13     14/13 
 16 v      1.189914    1.073503    0.176787   0                             2/13      2/12      5/13      5/12      8/13     11/13     13/13     14/12