sub foo{
    return { bar => 'baz' };
}

##</code><code>##

sub foo{
    return ( bar => 'baz' );
}

##</code><code>##

my $foo = [
    { bar => 'baz' },
];

##</code><code>##

perl -e 'split//,q{john hurl, pest caretaker}and(map{print @_[$_]}(join(q{},map{sprintf(qq{%010u},$_)}(2**2*307*4993,5*101*641*5261,7*59*79*36997,13*17*71*45131,3**2*67*89*167*181))=~/\d{2}/g));'