Sn 
 1.0000000000000000
     3.9064275286757133    0.0000000000000000   -0.0000000000000000
     0.0000000000000000    3.9064275286757133   -0.0000000000000000
     0.0000000000000000   -0.0000000000000000    3.3972108200867428
 Sn 
   2
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  1.9532137643378569  1.9532137643378564  1.6986054100433714   T   T   T