C Si 
 1.0000000000000000
     9.9649090549949086    0.0000000000000000    0.0000000000000000
     0.0000000000000000    9.9649090549949086   -0.0000000000000000
    -0.0000000000000000   -0.0000000000000000    9.9649090549949086
 C   Si 
   4   4
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
 -0.0000000000000000  4.9824545274974508  4.9824545274974508   T   T   T
  4.9824545274974508 -0.0000000000000000  4.9824545274974508   T   T   T
  4.9824545274974508  4.9824545274974508 -0.0000000000000000   T   T   T
  4.9824545274974508  4.9824545274974508  4.9824545274974508   T   T   T
  4.9824545274974508  0.0000000000000000  0.0000000000000000   T   T   T
  0.0000000000000000  4.9824545274974508 -0.0000000000000000   T   T   T
 -0.0000000000000000 -0.0000000000000000  4.9824545274974508   T   T   T