C Si 
 1.0000000000000000
     6.9167062261460499    0.0000000000000000    0.0000000000000000
     0.0000000000000000    6.9167062261460499    0.0000000000000000
     0.0000000000000000    0.0000000000000000    6.9167062261460499
 C   Si 
   8   4
Selective dynamics
Cartesian
  2.3195914218588509  2.3195914218588509  2.3195914218588509   T   T   T
  1.1387616912141767  4.5971148042872096  5.7779445349318737   T   T   T
  4.5971148042872096  5.7779445349318737  1.1387616912141769   T   T   T
  5.7779445349318737  1.1387616912141769  4.5971148042872096   T   T   T
  4.5971148042872096  4.5971148042872096  4.5971148042872096   T   T   T
  5.7779445349318737  2.3195914218588509  1.1387616912141769   T   T   T
  2.3195914218588509  1.1387616912141769  5.7779445349318737   T   T   T
  1.1387616912141767  5.7779445349318737  2.3195914218588509   T   T   T
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  3.4583531130730276  0.0000000000000000  3.4583531130730276   T   T   T
  0.0000000000000000  3.4583531130730276  3.4583531130730276   T   T   T
  3.4583531130730276  3.4583531130730276  0.0000000000000000   T   T   T