C Si 
 1.0000000000000000
     4.1322351555346089   -0.0000000000000000   -0.0000000000000000
    -0.0000000000000000    4.1322351555346089    0.0000000000000000
    -0.0000000000000000    0.0000000000000000    4.1322351555346089
 C   Si 
   4   4
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
 -0.0000000000000000  2.0661175777673040  2.0661175777673040   T   T   T
  2.0661175777673040  0.0000000000000000  2.0661175777673040   T   T   T
  2.0661175777673040  2.0661175777673040  0.0000000000000000   T   T   T
  2.0661175777673040  2.0661175777673040  2.0661175777673040   T   T   T
  2.0661175777673040 -0.0000000000000000 -0.0000000000000000   T   T   T
 -0.0000000000000000  2.0661175777673040  0.0000000000000000   T   T   T
 -0.0000000000000000  0.0000000000000000  2.0661175777673040   T   T   T