$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    0.898209   -0.564728    0.118851
O   8.0    1.176575   -1.846786    0.664703
C   6.0   -0.585556   -0.314072    0.285675
C   6.0   -0.937607    1.053024   -0.285812
H   1.0    1.144196   -0.618210   -0.963226
H   1.0    1.467500    0.171188    0.725906
H   1.0    2.027313   -1.794815    1.065704
H   1.0   -0.845871   -0.340958    1.367447
H   1.0   -1.156769   -1.100113   -0.257080
H   1.0   -2.027328    1.245941   -0.167404
H   1.0   -0.678192    1.091721   -1.367447
H   1.0   -0.368942    1.846802    0.248306
 $end