&control
    calculation='relax',
    restart_mode='from_scratch',
    prefix='ch4'
    pseudo_dir = '~/pseudos/',
    outdir='./'
    tprnfor = .true.
 /
 &system
    ibrav = 1, celldm(1) =20.0, nat=  5, ntyp= 2,
    ecutwfc = 30.0, ecutrho = 300.0
 /
 &electrons
    mixing_beta = 0.7
    conv_thr =  1.0d-8
 /
 &ions
    ion_dynamics="bfgs",
 /
ATOMIC_SPECIES
 C  12.01 CUSPBE.RRKJ3
 H  1.010 HUSPBE.RRKJ3  
ATOMIC_POSITIONS (angstrom)
 C     0.000000     0.000000     0.000000
 H     0.000000     0.000000     1.088000
 H     1.026719     0.000000    -0.362000
 H    -0.513360     0.889165    -0.362000
 H    -0.513360    -0.889165    -0.362000
K_POINTS (automatic)
1 1 1 0 0 0