$cell vectors
1.0
  7.8399963109525155    0.0000000000000000    0.0000000000000000
  0.0000000000000000    7.8399963109525155    0.0000000000000000
  0.0000000000000000    0.0000000000000000    7.8399963109525155
 8 4 12
Direct
  0.3175999999999998    0.3175999999999998    0.3175999999999998 # Sn1
  0.6490000000000004    0.6490000000000004    0.6490000000000004 # Sn2
  0.1824000000000001    0.6824000000000001    0.8175999999999998 # Sn3
  0.8509999999999994    0.3509999999999996    0.1490000000000003 # Sn4
  0.8175999999999998    0.1824000000000001    0.6824000000000001 # Sn5
  0.1490000000000003    0.8509999999999994    0.3509999999999996 # Sn6
  0.6824000000000001    0.8175999999999998    0.1824000000000001 # Sn7
  0.3509999999999996    0.1490000000000003    0.8509999999999994 # Sn8
  0.9889999999999998    0.9889999999999998    0.9889999999999998 # Cl1
  0.5110000000000001    0.0110000000000002    0.4889999999999997 # Cl2
  0.4889999999999997    0.5110000000000001    0.0110000000000002 # Cl3
  0.0110000000000002    0.4889999999999997    0.5110000000000001 # Cl4
  0.3749999999999996    0.1349999999999998    0.1189999999999998 # F1
  0.1189999999999998    0.3749999999999996    0.1349999999999998 # F2
  0.1349999999999998    0.1189999999999998    0.3749999999999996 # F3
  0.3650000000000002    0.8810000000000001    0.8749999999999996 # F4
  0.6189999999999999    0.1250000000000003    0.8650000000000000 # F5
  0.8650000000000000    0.6189999999999999    0.1249999999999997 # F6
  0.3810000000000001    0.6250000000000003    0.6349999999999998 # F7
  0.8810000000000001    0.8749999999999996    0.3650000000000002 # F8
  0.6349999999999998    0.3810000000000001    0.6250000000000003 # F9
  0.1250000000000003    0.8650000000000000    0.6189999999999999 # F10
  0.8749999999999996    0.3650000000000002    0.8810000000000001 # F11
  0.6250000000000003    0.6349999999999998    0.3810000000000001 # F12