based on FILENAME
$REG kprob=0, xjfact=0.0, icylin=0, nbslf=1, nbsrt=1, CONV=1.0000, DX=0.005, DY=0.02, mode=-1 &

$PO X=0.000000, Y=0.000000 $
$PO X=0.02500000, Y=0.000000 $
$PO X=0.02500000, Y=2.000000 $
$PO X=0.000000, Y=2.000000 $
$PO X=0.000000, Y=0.000000 $

&reg mat=0,ibound=-1,voltage=7400.0 &
&po x=0.0,y=2.0 &
&po x=0.025,y=2.0 &

&reg mat=0,ibound=-1,voltage=0.0 &
&po x=0.0,y=0.0 &
&po x=0.025,y=0.0 &

&reg mat=3, mtid=3 &
$PO X=0.000000, Y=0.000000 $
$PO X=0.02500000, Y=0.000000 $
$PO X=0.025000, Y=0.700000 $
$PO X=0.000000, Y=0.7000000 $
$PO X=0.000000, Y=0.000000 $

&reg mat=4, mtid=4 &
$PO X=0.000000, Y=0.700000 $
$PO X=0.02500000, Y=0.700000 $
$PO X=0.025000, Y=1.300000 $
$PO X=0.000000, Y=1.3000000 $
$PO X=0.000000, Y=0.700000 $

&mt mtid=3      
epsilon=3.7  &

&mt mtid=4
epsilon=9.0  &