Ar 
 1.0000000000000000
     5.2622996401984246    0.0000000000000000   -0.0000000000000000
    -0.0000000000000000    5.2622996401984246   -0.0000000000000000
    -0.0000000000000000   -0.0000000000000000    5.2622996401984246
 Ar 
   4
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
 -0.0000000000000000  2.6311498200992123  2.6311498200992123   T   T   T
  2.6311498200992123 -0.0000000000000000  2.6311498200992123   T   T   T
  2.6311498200992123  2.6311498200992123 -0.0000000000000000   T   T   T