Sn 
 1.0000000000000000
     3.4925113034614328   -0.0000000000000000    0.0000000000000000
     0.0000000000000000    3.4925113034614323   -0.0000000000000000
     0.0000000000000000    0.0000000000000004    4.5124154967003332
 Sn 
   2
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  1.7462556517307164  1.7462556517307160  2.2562077483501670   T   T   T