Ar 
 1.0000000000000000
     5.2535636079202801    0.0000000000000000    0.0000000000000000
     0.0000000000000000    5.2535636079202801    0.0000000000000000
     0.0000000000000000    0.0000000000000000    5.2535636079202801
 Ar 
   4
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  0.0000000000000000  2.6267818039601405  2.6267818039601405   T   T   T
  2.6267818039601405  0.0000000000000000  2.6267818039601405   T   T   T
  2.6267818039601405  2.6267818039601405  0.0000000000000000   T   T   T