Ar 
 1.0000000000000000
     5.2468697129549167    0.0000000000000000   -0.0000000000000000
    -0.0000000000000000    5.2468697129549158    0.0000000000000001
     0.0000000000000000    0.0000000000000001    5.2468697129549158
 Ar 
   4
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
 -0.0000000000000000  2.6234348564774583  2.6234348564774583   T   T   T
  2.6234348564774588  0.0000000000000000  2.6234348564774583   T   T   T
  2.6234348564774588  2.6234348564774583  0.0000000000000000   T   T   T