$cell vectors
1.0
  5.7949972732104360    0.0000000000000000    0.0000000000000000
  0.0000000000000000    5.7949972732104360    0.0000000000000000
  0.0000000000000000    0.0000000000000000    5.7949972732104360
 1 1 3
Direct
  0.0000000000000000    0.0000000000000000    0.0000000000000000 # Cs1
  0.5000000000000000    0.5000000000000000    0.5000000000000000 # Sn1
  0.0000000000000000    0.5000000000000000    0.5000000000000000 # Br1
  0.5000000000000000    0.0000000000000000    0.5000000000000000 # Br2
  0.5000000000000000    0.5000000000000000    0.0000000000000000 # Br3