 &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 alat
O   0.000000000   0.000000000   0.000000000
K_POINTS {gamma}
OCCUPATIONS
2  4/3 1+1/3 (1+2/2*3)/3 3*0 1-1

