$contrl scftyp=RHF runtyp=optimize icharg=0
     mult=1 coord=cart $end
 $system timlim=16660 mwords=20 $end
 $statpt nstep=350 HESS=calc PURIFY=.TRUE. hssend=.true. $end
 $basis gbasis=n31 ngauss=6 $end
 $guess guess=huckel $end
 $data
malonaldehyde
C1
C   6.0    0.522888    0.083435   -0.436432
O   8.0    0.801270   -1.198639    0.109436
C   6.0   -0.960876    0.334091   -0.269608
H   1.0    0.768890    0.029953   -1.518524
H   1.0    1.092194    0.819366    0.170624
H   1.0    1.652023   -1.146667    0.510452
H   1.0   -1.227386    1.331711   -0.684830
H   1.0   -1.232635    0.306290    0.809341
H   1.0   -1.541885   -0.448837   -0.806412
 $end