Mg Sn 
 1.0000000000000000
     4.4160929027242783   -0.0000000000000000    0.0000000000000000
    -2.2080464513621392    3.8244486392313886   -0.0000000000000000
     0.0000000000000000    0.0000000000000000    5.1717274473949688
 Mg  Sn 
   4   2
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  0.0000000000000000  0.0000000000000000  2.5858637236974844   T   T   T
 -0.0000000000000005  2.5496324261542602  1.2929318618487422   T   T   T
  2.2080464513621396  1.2748162130771303  3.8787955855462259   T   T   T
 -0.0000000000000005  2.5496324261542602  3.8787955855462259   T   T   T
  2.2080464513621396  1.2748162130771303  1.2929318618487422   T   T   T