Si 
 1.0000000000000000
     6.7417443056971313   -0.0000000000000000    0.0000000000000000
    -0.0000000000000000    6.7417443056971313   -0.0000000000000000
     0.0000000000000000   -0.0000000000000000    6.7417443056971313
 Si 
  12
Selective dynamics
Cartesian
  1.6854360764242828 -0.0000000000000000  3.3708721528485657   T   T   T
  5.0563082292728483 -0.0000000000000000  3.3708721528485657   T   T   T
  3.3708721528485657  1.6854360764242828 -0.0000000000000000   T   T   T
  3.3708721528485657  5.0563082292728483 -0.0000000000000000   T   T   T
  0.0000000000000000  3.3708721528485657  1.6854360764242831   T   T   T
  0.0000000000000000  3.3708721528485657  5.0563082292728483   T   T   T
  0.0000000000000000  1.6854360764242828  3.3708721528485657   T   T   T
  0.0000000000000000  5.0563082292728483  3.3708721528485657   T   T   T
  1.6854360764242828  3.3708721528485657 -0.0000000000000000   T   T   T
  5.0563082292728483  3.3708721528485657 -0.0000000000000000   T   T   T
  3.3708721528485657 -0.0000000000000000  5.0563082292728483   T   T   T
  3.3708721528485657 -0.0000000000000000  1.6854360764242831   T   T   T