# type topo
# cell     2.511100     2.511100     6.065200    90.000000    90.000000   120.000000
12
  1 n      1.255550    0.000000    2.532828   0                             5/13      8/13     11/10 
  2 n     -0.627775    1.087338    4.554561   0                             4/13       9/4     12/13 
  3 n      0.627775    1.087338    0.511094   0                             6/13      7/13     10/13 
  4 n     -0.627775    1.087338    5.554106   0                             2/13       7/5     10/14 
  5 n      1.255550    0.000000    3.532372   0                             1/13      9/13     12/10 
  6 n      0.627775    1.087338    1.510639   0                             3/13      8/13     11/13 
  7 n      1.255550    0.500176    0.000000   1                             3/13      4/21     10/10 
  8 n      1.450160    0.837250    2.021733   1                             1/13      6/13     11/22 
  9 n      1.060940    0.837250    4.043467   1                             2/22      5/13     12/13 
 10 n      0.000000    1.674501    0.000000   1                             3/13      4/12      7/16 
 11 n     -0.194610    1.337426    2.021733   1                             1/16      6/13       8/4 
 12 n      0.194610    1.337426    4.043467   1                             2/13      5/16      9/13