C Si 
 1.0000000000000000
     3.0740637161731827    0.0000000000000000   -0.0000000000000000
    -1.5370318580865914    2.6622172710579730    0.0000000000000000
    -0.0000000000000000    0.0000000000000000   10.0632937232241080
 C   Si 
   4   4
Selective dynamics
Cartesian
  0.0000000000000000 -0.0000000000000000 -0.0012823509995291   T   T   T
 -0.0000000000000000  0.0000000000000000  5.0303645106125252   T   T   T
 -0.0000000000000008  1.7748115140386487  7.5501079030893221   T   T   T
  1.5370318580865916  0.8874057570193243  2.5184610414772708   T   T   T
  0.0000000000000000  0.0000000000000000  1.8886098831557179   T   T   T
  0.0000000000000000 -0.0000000000000000  6.9202567447677712   T   T   T
 -0.0000000000000008  1.7748115140386487  9.4312403690604878   T   T   T
  1.5370318580865916  0.8874057570193243  4.3995935074484329   T   T   T