my $str = 'Hulk hate classless system with means of manufacturing given to working class! Hulk crush puny Marxists!';
if ($str =~ /Hulk hate \w+/) {
    print "\$-[0] <$-[0]> \$+[0] <$+[0]>\n";
    my $word = substr $str, $-[0] + 10, $+[0] - $-[0] + 10;
    print "word <$word>\n";
}
__END__
$-[0] <0> $+[0] <19>
word <classless system with means o>