C Si 
 1.0000000000000000
     3.0456010330063741   -0.0000000000000000   -0.0000000000000000
    -1.5228005165031870    2.6375678643756473   -0.0000000000000000
    -0.0000000000000000   -0.0000000000000000   19.8937826394466839
 C   Si 
   8   8
Selective dynamics
Cartesian
 -0.0000000000000000 -0.0000000000000000  1.8675288396844454   T   T   T
 -0.0000000000000000 -0.0000000000000000 11.8144201594077938   T   T   T
 -0.0000000000000008  1.7583785762504316  6.8409744991054513   T   T   T
  1.5228005165031868  0.8791892881252158 16.7878658188288057   T   T   T
 -0.0000000000000008  1.7583785762504316 14.3011429888784569   T   T   T
  1.5228005165031868  0.8791892881252158  4.3542516691551114   T   T   T
 -0.0000000000000008  1.7583785762504316 19.2745886492801155   T   T   T
  1.5228005165031868  0.8791892881252158  9.3276973295567753   T   T   T
 -0.0000000000000000 -0.0000000000000000  0.0024867171937115   T   T   T
 -0.0000000000000000 -0.0000000000000000  9.9493780369170519   T   T   T
 -0.0000000000000008  1.7583785762504316 12.4361008665706905   T   T   T
  1.5228005165031868  0.8791892881252158  2.4892095468473494   T   T   T
 -0.0000000000000008  1.7583785762504316  4.9759323763180374   T   T   T
  1.5228005165031868  0.8791892881252158 14.9228236960413803   T   T   T
 -0.0000000000000008  1.7583785762504316 17.4095465263955482   T   T   T
  1.5228005165031868  0.8791892881252158  7.4626552066721912   T   T   T