Im trying to figure this out but I dont get it. Here's the code
$a = "A9"; print ++$a, "\n";
$a = "bz"; print ++$a, "\n";
$a = "Zz"; print ++$a, "\n";
$a = "z9"; print ++$a, "\n";
$a = "9z"; print ++$a, "\n";
I get the first two outputs, A turns to B and 9 to 0.
But how does "Zz" become "AAa", "z9" become "aa0" and so on..
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