&control
    calculation='scf',
 /
 &system
   ibrav=1,
   celldm(1)=10.0,
   nat=1,
   ntyp=1,
   nbnd=6,
   ecutwfc=25.0,
   ecutrho=200.0,
   occupations='from_input',
 /
 &electrons
   mixing_beta=0.25,
 /
ATOMIC_SPECIES
O     15.99994   O.pz-rrkjus.UPF
ATOMIC_POSITIONS
O   0.000000000   0.000000000   0.000000000
K_POINTS {gamma}
OCCUPATIONS
2.0 1.3333333333 1.3333333333 1.3333333333 0.0 0.0