Ac1 Hg2 Mg1 
   1.0
     0.0000000000000000    3.8238575000000004    3.8238575000000004
     3.8238575000000004    0.0000000000000000    3.8238575000000004
     3.8238575000000004    3.8238575000000004    0.0000000000000000
   Ac Hg Mg 
   1 2 1 
Direct
  0.500000000000 0.500000000000 0.500000000000 
  0.750000000000 0.750000000000 0.750000000000 
  0.250000000000 0.250000000000 0.250000000000 
  0.000000000000 0.000000000000 0.000000000000 
