C Si 
 1.0000000000000000
     3.1409983260528520    0.0000000000000000   -0.0000000000000000
     0.0000000000000000    3.1409983260528511    0.0000000000000000
     0.0000000000000000    0.0000000000000001    7.1366199142275608
 C   Si 
   4   2
Selective dynamics
Cartesian
  0.0000000000000000  1.5704991630264258  4.3594768841992977   T   T   T
  1.5704991630264260  0.0000000000000000  0.7911669270855138   T   T   T
  0.0000000000000000  1.5704991630264258  2.7771430300282662   T   T   T
  1.5704991630264260  0.0000000000000001  6.3454529871420480   T   T   T
  0.0000000000000000  0.0000000000000000  1.7841549785568900   T   T   T
  0.0000000000000000  0.0000000000000000  5.3524649356706719   T   T   T