Perl LWP

Okay, so I'm trying to submit the md5 hash to a website. the problem is that when I run it, instead of submitting the hash, the program is submitting some other data. How do I make it submit only the hash, am I parsing something wrong?
use HTTP::Request::Common qw(POST); 
use LWP::UserAgent;

$hash='098f6bcd4621d373cade4e832627b4f6';


 
$ua = LWP::UserAgent->new(); 
my $req = POST 'http://www.md5crack.com/crackmd5.php', [
 maxlength=> '2048',
 name=> 'term',
 size=>'55',
 title=>'md5 hash to crack',
 value=> 'test',
 name=>'crackbtn',
 type=>'submit',
 value=>'Crack that hash baby!',

];
$content = $ua->request($req)->as_string;

print "Content-type: text/html\n\n";
print $content;