C Si 
 1.0000000000000000
     3.0846778118348994   -0.0000000000000000   -0.0000000000000000
    -1.5423389059174497    2.6714093475392175   -0.0000000000000000
    -0.0000000000000000   -0.0000000000000000   20.1490310931331358
 C   Si 
   8   8
Selective dynamics
Cartesian
  0.0000000000000000 -0.0000000000000000  1.8914902882787699   T   T   T
 -0.0000000000000000  0.0000000000000000 11.9660058348453493   T   T   T
 -0.0000000000000009  1.7809395650261441  6.9287480607981671   T   T   T
  1.5423389059174506  0.8904697825130721 17.0032636073647545   T   T   T
 -0.0000000000000009  1.7809395650261441 14.4846347206489163   T   T   T
  1.5423389059174506  0.8904697825130721  4.4101191740823573   T   T   T
 -0.0000000000000009  1.7809395650261441 19.5218924948848525   T   T   T
  1.5423389059174506  0.8904697825130721  9.4473769483182721   T   T   T
 -0.0000000000000000  0.0000000000000000  0.0025186234721348   T   T   T
  0.0000000000000000 -0.0000000000000000 10.0770341700387061   T   T   T
 -0.0000000000000009  1.7809395650261441 12.5956630561361855   T   T   T
  1.5423389059174506  0.8904697825130721  2.5211475095696319   T   T   T
 -0.0000000000000009  1.7809395650261441  5.0397763955418409   T   T   T
  1.5423389059174506  0.8904697825130721 15.1142919421084070   T   T   T
 -0.0000000000000009  1.7809395650261441 17.6329208295498283   T   T   T
  1.5423389059174506  0.8904697825130721  7.5584052829832507   T   T   T