C Si 
 1.0000000000000000
     3.0766832234224473    0.0000000000000000   -0.0000000000000000
    -1.5383416117112236    2.6644858308812336   -0.0000000000000000
    -0.0000000000000000   -0.0000000000000000   15.0956183683719534
 C   Si 
   6   6
Selective dynamics
Cartesian
  0.0000000000000000 -0.0000000000000000  1.8858117966426851   T   T   T
  0.0000000000000000 -0.0000000000000000  9.4336209808286604   T   T   T
 -0.0000000000000011  1.7763238872541551 11.9486705168887202   T   T   T
  1.5383416117112234  0.8881619436270776  4.4008613327027399   T   T   T
 -0.0000000000000011  1.7763238872541551  6.9257317530508038   T   T   T
  1.5383416117112234  0.8881619436270776 14.4735409372367769   T   T   T
  0.0000000000000000 -0.0000000000000000  0.0044899315070216   T   T   T
 -0.0000000000000000  0.0000000000000000  7.5522991156929962   T   T   T
 -0.0000000000000011  1.7763238872541551 10.0593902925990566   T   T   T
  1.5383416117112234  0.8881619436270776  2.5115811084130777   T   T   T
 -0.0000000000000011  1.7763238872541551  5.0379624668635747   T   T   T
  1.5383416117112234  0.8881619436270776 12.5857716510495532   T   T   T