$ perl -le '$c = "a"; print ++$c'
b

##</code><code>##

$ perl -Mstrict -MData::Dumper -we 'my @a = qw(a b c d); \
  my %h = map { $_++ } @a; print Dumper \%h'
$VAR1 = {
          'c' => 'd',
          'a' => 'b'
        };

##</code><code>##

s**lil*;  $*=join'',sort split q**;  s;.*;grr; &&s+(.(.)).+$2$1+; $; =
qq-$_-;s,.*,ahc,;$,.=chop for split q,,,reverse;print for($,,$;,$*,$/)