C Si 
 1.0000000000000000
     3.5538671048401409    0.0000000000000000    0.0000000000000000
     0.0000000000000000    3.5538671048401418   -0.0000000000000000
    -0.0000000000000000   -0.0000000000000001    8.1226129208063895
 C   Si 
   4   2
Selective dynamics
Cartesian
 -0.0000000000000000  1.7769335524200711  4.9449262484621253   T   T   T
  1.7769335524200707 -0.0000000000000000  0.8836197880589262   T   T   T
 -0.0000000000000000  1.7769335524200711  3.1776866723442683   T   T   T
  1.7769335524200707 -0.0000000000000001  7.2389931327474608   T   T   T
 -0.0000000000000000 -0.0000000000000000  2.0306532302015978   T   T   T
 -0.0000000000000000 -0.0000000000000001  6.0919596906047966   T   T   T