Ar 
 1.0000000000000000
     3.7116618298636399    0.0000000000000000   -0.0000000000000000
    -1.8558309149318200    3.2143934349189469   -0.0000000000000000
    -0.0000000000000000   -0.0000000000000000    6.0612392989817678
 Ar 
   2
Selective dynamics
Cartesian
 -0.0000000185583098  2.1429289673272760  1.5153098247454420   T   T   T
  1.8558308963735104  1.0714644890209599  4.5459294742363285   T   T   T