Ar 
 1.0000000000000000
     2.9155622369807679    0.0000000000000000   -0.0000000000000000
     0.0000000000000000    2.9155622369807683    0.0000000000000000
    -0.0000000000000000    0.0000000000000000    2.9155622369807674
 Ar 
   4
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  0.0000000000000000  1.4577811184903835  1.4577811184903844   T   T   T
  1.4577811184903835  0.0000000000000000  1.4577811184903844   T   T   T
  1.4577811184903835  1.4577811184903835  0.0000000000000000   T   T   T