C Si 
 1.0000000000000000
     3.5538671048401409    0.0000000000000000   -0.0000000000000000
    -0.0000000000000000    3.5538671048401391   -0.0000000000000001
    -0.0000000000000000   -0.0000000000000001    8.1226129208063682
 C   Si 
   4   2
Selective dynamics
Cartesian
 -0.0000000000000000  1.7769335524200696  4.9449262484621137   T   T   T
  1.7769335524200713 -0.0000000000000000  0.8836197880589232   T   T   T
  0.0000000000000000  1.7769335524200696  3.1776866723442598   T   T   T
  1.7769335524200713 -0.0000000000000001  7.2389931327474448   T   T   T
 -0.0000000000000000 -0.0000000000000000  2.0306532302015921   T   T   T
 -0.0000000000000000 -0.0000000000000001  6.0919596906047753   T   T   T