$cell vectors
1.0
  6.2099970779355989    0.0000000000000000    0.0000000000000000
  0.0000000000000000    6.2099970779355989    0.0000000000000000
  0.0000000000000000    0.0000000000000000   11.0019948230994373
 2 20
Direct
  0.0000000000000000    0.0000000000000000    0.2500000000000000 # Ca1
  0.0000000000000000    0.0000000000000000    0.7500000000000000 # Ca2
  0.5000000000000004    0.5000000000000004    0.1820000000000001 # O1
  0.3090000000000001    0.1290000000000001    0.1280000000000000 # O2
  0.6910000000000008    0.8710000000000000    0.8720000000000000 # O3
  0.8710000000000000    0.3090000000000001    0.1280000000000000 # O4
  0.1290000000000001    0.6910000000000008    0.8720000000000000 # O5
  0.6909999999999998    0.8710000000000000    0.1280000000000000 # O6
  0.3090000000000001    0.1290000000000001    0.8720000000000000 # O7
  0.1290000000000001    0.6909999999999998    0.1280000000000000 # O8
  0.5000000000000004    0.5000000000000004    0.8179999999999998 # O9
  0.8710000000000000    0.3090000000000001    0.8720000000000000 # O10
  0.5000000000000004    0.5000000000000004    0.3179999999999999 # O11
  0.3090000000000001    0.8710000000000000    0.3720000000000001 # O12
  0.5000000000000004    0.5000000000000004    0.6819999999999995 # O13
  0.6909999999999998    0.1290000000000001    0.6280000000000000 # O14
  0.6909999999999998    0.1290000000000001    0.3720000000000001 # O15
  0.3090000000000001    0.8710000000000000    0.6280000000000000 # O16
  0.1290000000000001    0.3090000000000001    0.3720000000000001 # O17
  0.8710000000000000    0.6910000000000008    0.6280000000000000 # O18
  0.8710000000000000    0.6910000000000008    0.3720000000000001 # O19
  0.1290000000000001    0.3090000000000001    0.6280000000000000 # O20