"Sn1 Se2"                               
   1.00000000000000     
     3.8464052687627550    0.0000000000015396    0.0000000000000001
    -1.9232026344298054    3.3310846760065127   -0.0000000000000002
     0.0000000000000007   -0.0000000000000005   18.3572978035193977
   Sn   Se
     1     2
Direct
  0.0000000000000000 -0.0000000000000000  0.5000000000000000
  0.6666666670000012  0.3333333329999988  0.5872511780709923
  0.3333333329999988  0.6666666670000012  0.4127488219290077
 
  0.00000000E+00  0.00000000E+00  0.00000000E+00
  0.00000000E+00  0.00000000E+00  0.00000000E+00
  0.00000000E+00  0.00000000E+00  0.00000000E+00
