C Si 
 1.0000000000000000
     3.0261355269590342    0.0000000000000000   -0.0000000000000000
    -1.5130677634795171    2.6207102416411332   -0.0000000000000000
    -0.0000000000000000   -0.0000000000000000    9.8833172449343554
 C   Si 
   4   4
Selective dynamics
Cartesian
  0.0000000000000000 -0.0000000000000000  0.0000000179909783   T   T   T
  0.0000000000000000 -0.0000000000000000  4.9416586404581562   T   T   T
 -0.0000000000000002  1.7471401610940891  7.4124879516645850   T   T   T
  1.5130677634795175  0.8735700805470445  2.4708293291974073   T   T   T
  0.0000000000000000 -0.0000000000000000  1.8531220014239014   T   T   T
 -0.0000000000000000  0.0000000000000000  6.7947806238910795   T   T   T
 -0.0000000000000002  1.7471401610940891  9.2656099351230559   T   T   T
  1.5130677634795175  0.8735700805470445  4.3239513126558764   T   T   T