# type topo
# cell     1.633100     1.633100     2.666700    90.000000    90.000000   120.000000
4
  1 s     -0.000082    0.942918    0.166669   0                             3/15       3/3      3/12      4/13 
  2 s      0.816632    0.471388    1.500019   0                             3/13      4/22      4/10      4/13 
  3 s      0.816632    0.471388    2.500031   0                             1/11      1/23      1/14      2/13 
  4 s     -0.000082    0.942918    1.166681   0                             1/13       2/4      2/16      2/13