Here are my four variations:
$c=ord"\cJ";while($c){print$c--.$/};
$c=ord"\cJ";print$c--.$/for(a..j);
for($c=ord"\cJ";$c;$c--){print$c.$/};
$c=ord"\cJ";map{print$c--.$/}(a..j);
UPDATE: I had blindly followed the example and used
the \cJ when in fact it was just a \n. Also gmax pointed
out that my first example could be shorten by moving
the while statement. So here is a revised entry:
$c=ord"\n";print$c--.$/while$c;
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