# type topo
# cell     3.266000     3.266000     2.309400    90.000000    90.000000   120.000000
12
  1 s     -0.816500    1.414219    0.000000   0                             7/13      9/13      10/3      12/3 
  2 s      0.816500    1.414219    0.000000   0                             7/13      8/13     10/12     11/12 
  3 s      1.633000    0.000000    0.000000   0                             8/10     11/12     12/12      9/10 
  4 s     -0.816500    1.414219    1.154700   0                             9/13      7/13      10/4      12/4 
  5 s      0.816500    1.414219    1.154700   0                             8/13      7/13     10/13     11/13 
  6 s      1.633000    0.000000    1.154700   0                             8/10     11/13      9/10     12/13 
  7 s      0.000000    1.414219    0.577350   1                             1/13      2/13      4/13      5/13 
  8 s      0.408250    2.121329    0.577350   1                             2/13      3/16      5/13      6/16 
  9 s     -0.408250    2.121329    0.577350   1                             1/13      3/16      4/13      6/16 
 10 s      1.633000    1.414219    1.732050   1                             1/23      2/14      4/22      5/13 
 11 s      1.224750    0.707110    1.732050   1                             2/14      3/14      5/13      6/13 
 12 s      2.041250    0.707110    1.732050   1                             1/23      3/14      4/22      6/13