# type topo
# cell     1.902100     4.198700     3.810400    90.000000    97.459000    90.000000
20
  1 n     -0.123663    2.428948    0.944539   0                             3/13       4/4     16/13 
  2 n     -0.370990    1.769752    2.833617   0                              5/4      6/13     15/13 
  3 n      0.051229    1.562756    0.476048   1                             1/13       4/4      7/13 
  4 n      1.603544    1.562756    1.413031   1                             1/22      3/22      8/13 
  5 n      1.356217    2.635944    3.302109   1                             2/22      6/22      9/13 
  6 n     -0.196098    2.635944    2.365126   1                             2/13       5/4     10/13 
  7 o      0.209895    0.673471    0.047227   2                             3/13      12/3     14/10     15/12      18/4      20/9 
  8 o      1.444878    0.673471    1.841851   2                             4/13     11/22     13/10     15/22     17/22     19/10 
  9 o      1.197551    3.525229    3.730929   2                             5/13     12/16     14/23     16/23     18/17     20/22 
 10 o     -0.037431    3.525229    1.936305   2                             6/13     11/16      13/4     16/13     17/16      19/4 
 11 i      0.271333    0.192300    2.329611   3                              8/4     10/10     15/13     17/13     19/10      19/1     20/10 
 12 i      0.888787    0.192300    3.337623   3                             7/23      9/10     15/22     18/14     19/10     20/10     20/19 
 13 i      1.136114    4.006400    1.448545   3                             8/16     10/22     16/22     17/16     17/25     18/16     19/13 
 14 i      0.518660    4.006400    0.440533   3                             7/16       9/3     16/13     17/16     18/16      18/7     20/12 
 15 i     -0.370990    0.769622    2.833617   4                             2/13      7/14       8/4     11/13      12/4      19/1     20/10 
 16 i     -0.123663    3.429078    0.944539   4                             1/13       9/3     10/13      13/4     14/13     17/16      18/7 
 17 v      0.185101    0.096150    1.337845   5                              8/4     10/10     11/13     13/10      13/1     14/10     16/10      18/4 
 18 v      1.469672    0.096150    0.551233   5                             7/22       9/9     12/12     13/10     14/10     14/19     16/19     17/22 
 19 v      1.222346    4.102550    2.440311   5                             8/16     10/22     11/16     11/25     12/16     13/13     15/25     20/22 
 20 v     -0.062226    4.102550    3.226923   5                             7/17       9/4     11/16     12/16      12/7     14/14     15/16      19/4