Can someone tell whats wrong with this code?

Rick Tuinenburg (rtuinenburg@csg-i.com)
Wed, 24 Mar 1999 16:56:40 -0800 

$cool[1][1] = 5;
$cool[1][2] = 2;

@cool = sort(@cool);
foreach $item(@cool) {
print "$item\n";
}

how can I sort this correctly?

Thanks