&control
    calculation='scf',
 /
 &system    
    ibrav = 0
    nat=2, ntyp=1,
    ecutwfc = 25.0
    a=5.29177
 /
 &electrons
 /
ATOMIC_SPECIES
 H 1.0008   H.vbc.UPF
ATOMIC_POSITIONS {angstrom}
 H  0.00 0.00 -0.35 
 H  0.00 0.00  0.35
CELL_PARAMETERS cubic
  1.000000   .000000   .000000 
   .450000  1.430909   .000000  
   .400000   .083863  1.957796  
K_POINTS {gamma}