# type topo
# cell     3.864900     2.000000     3.862600    90.000000    90.000000    90.000000
12
  1 o      0.000000    0.000000    0.000000   0                             2/13      2/10      5/10       6/1       7/3      8/12 
  2 o      0.000000    1.000000    0.000000   0                             1/13      1/16      5/13       6/4       7/3      8/12 
  3 o      1.932450    1.000000    1.931300   0                             4/16      4/13      9/13     10/13     11/13     12/13 
  4 o      1.932450    0.000000    1.931300   0                             3/10      3/13      9/13     10/13     11/10     12/10 
  5 n      0.612200    1.500000    0.612608   1                             1/16      2/13     11/13 
  6 n      3.252700    1.500000    0.612608   1                             1/25      2/22     12/13 
  7 n      3.252700    0.500000    3.249992   1                             1/23      2/23      9/13 
  8 n      0.612200    0.500000    3.249992   1                             1/14      2/14     10/13 
  9 n      2.544650    0.500000    2.543908   1                             3/13      4/13      7/13 
 10 n      1.320250    0.500000    2.543908   1                             3/13      4/13      8/13 
 11 n      1.320250    1.500000    1.318692   1                             3/13      4/16      5/13 
 12 n      2.544650    1.500000    1.318692   1                             3/13      4/16      6/13