# type topo
# cell     2.546800     3.737500     2.548500    90.000000    90.000000    90.000000
12
  1 s      0.000000    0.000000    0.000000   0                             5/13       8/9       9/0      12/4 
  2 s      0.000000    1.868750    0.000000   0                              6/4       7/3     10/12     11/13 
  3 s      1.273400    1.868750    1.274250   0                             6/13      7/13     10/13     11/13 
  4 s      1.273400    0.000000    1.274250   0                             5/13      8/10      9/10     12/13 
  5 n      0.636700    0.434298    0.637125   1                             1/13      4/13     11/13 
  6 n      1.910100    1.434453    0.637125   1                             2/22      3/13     12/13 
  7 n      1.910100    2.303047    1.911375   1                             2/23      3/13      9/13 
  8 n      0.636700    3.303202    1.911375   1                             1/17      4/16     10/13 
  9 n      1.910100    3.303202    1.911375   1                             1/26      4/16      7/13 
 10 n      0.636700    2.303047    1.911375   1                             2/14      3/13      8/13 
 11 n      0.636700    1.434453    0.637125   1                             2/13      3/13      5/13 
 12 n      1.910100    0.434298    0.637125   1                             1/22      4/13      6/13