C Si 
 1.0000000000000000
     3.1914641688965149    0.0000000000000000    0.0000000000000000
    -0.0000000000000000    3.1914641688965149    0.0000000000000000
     0.0000000000000000    0.0000000000000000    7.0601257286142225
 C   Si 
   4   2
Selective dynamics
Cartesian
  0.0000000000000000  1.5957320844482574  4.3102415664458782   T   T   T
  1.5957320844482574  0.0000000000000000  0.7801787021387678   T   T   T
  0.0000000000000000  1.5957320844482574  2.7498841621683425   T   T   T
  1.5957320844482574  0.0000000000000000  6.2799470264754556   T   T   T
  0.0000000000000000  0.0000000000000000  1.7650314321535561   T   T   T
  0.0000000000000000  0.0000000000000000  5.2950942964606673   T   T   T