# type topo
# cell     1.781500     3.316600     1.414300    90.000000   107.969000    90.000000
8
  1 i      0.336236    1.304750    0.109105   0                              2/4       2/3      2/13       5/3      6/13      6/12      7/12 
  2 i      1.227107    1.304750    0.563553   0                             1/22      1/23      1/13      5/13      5/12      6/22      8/13 
  3 i      1.226986    2.963050    0.109105   0                             4/13      4/12      4/22      5/12      7/15      8/16      8/15 
  4 i      0.336357    2.963050    0.563553   0                             3/13      3/14       3/4      6/13      7/16      7/15      8/16 
  5 i      1.008949    2.011850    1.236210   0                             1/23      2/13      2/14      3/14      6/22      6/23      6/13 
  6 i      0.118078    2.011850    0.781763   0                             1/13      1/14       2/4      4/13       5/4       5/3      5/13 
  7 i      0.118199    0.353550    1.236210   0                             1/14      3/11      4/10      4/11      8/13      8/14       8/4 
  8 i      1.008828    0.353550    0.781763   0                             2/13      3/10      3/11      4/10      7/13      7/12      7/22