#!perl
s//-
/;for$.(1..pop){s/./$& $&/g}print
|
#!perl $\="- ";$\=~s/./$& $&/gfor 1..pop;print |
#!perl $\="- ";map$\=~s/./$& $&/g,1..pop;print |
#!perl -l
s//-/;for$.(1..pop){s/./$& $&/g}print
|
#!perl -l
s//-/;for$.(1..pop){$_.=' 'x y///c.$_}print
|
#!perl -l
$_='-';for$i(1..pop){$_.=' 'x y///c.$_}print
|