based on FILENAME
$REG kprob=0, xjfact=0.0, icylin=0, nbslf=1, nbsrt=1, CONV=1.0000, DX=0.001, DY=0.001 &

$PO X=0.000000, Y=0.000000 $
$PO X=0.100000, Y=0.000000 $
$PO X=0.100000, Y=3.000000 $
$PO X=0.100000, Y=5.000000 $
$PO X=0.000000, Y=5.000000 $
$PO X=0.000000, Y=0.000000 $

&reg mat=0,ibound=-1,voltage=-1650.0 &
$PO X=0.100000, Y=3.00000 $

&reg mat=0,ibound=-1,voltage=50000.0 &
&po x=0.0,y=5.0 &
&po x=0.1,y=5.0 &

&reg mat=0,ibound=-1,voltage=0.0 &
&po x=0.0,y=0.0 &
&po x=0.1,y=0.0 &