C Si 
 1.0000000000000000
     4.4265268975107457   -0.0000000000000000    0.0000000000000000
    -0.0000000000000000    4.4265268975107457    0.0000000000000000
     0.0000000000000000    0.0000000000000000    4.4265268975107457
 C   Si 
   4   4
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
 -0.0000000000000000  2.2132634487553733  2.2132634487553733   T   T   T
  2.2132634487553733  0.0000000000000000  2.2132634487553733   T   T   T
  2.2132634487553733  2.2132634487553733  0.0000000000000000   T   T   T
  2.2132634487553733  2.2132634487553733  2.2132634487553733   T   T   T
  2.2132634487553733 -0.0000000000000000  0.0000000000000000   T   T   T
 -0.0000000000000000  2.2132634487553733  0.0000000000000000   T   T   T
  0.0000000000000000  0.0000000000000000  2.2132634487553733   T   T   T