&control
   prefix = 'co'
   calculation = 'scf'
   restart_mode = 'from_scratch'
   wf_collect = .true.
   tstress = .true.
   tprnfor = .true.
   outdir = './'
   wfcdir = './'
   pseudo_dir = './'
/
&system
   ibrav = 0
   celldm(1) = 13.228
   nat = 2
   ntyp = 2
   nbnd = 5
   ecutwfc = 60.0
/
&electrons
   electron_maxstep = 100
   conv_thr = 1.0d-10
   mixing_mode = 'plain'
   mixing_beta = 0.7
   mixing_ndim = 8
   diagonalization = 'david'
   diago_david_ndim = 4
   diago_full_acc = .true.
/
CELL_PARAMETERS alat
       1.000000000   0.000000000   0.000000000
       0.000000000   1.000000000   0.000000000
       0.000000000   0.000000000   1.000000000
ATOMIC_SPECIES
   C  12.011  C.UPF
   O  15.999  O.UPF
ATOMIC_POSITIONS bohr
   C  -1.066000000   0.000000000   0.000000000
   O   1.066000000   0.000000000   0.000000000
K_POINTS gamma
