http://www.perlmonks.org?node_id=849104


in reply to min and max in a hash of hash

... 01 => 07, ...

Just a note of caution: The number representation 07 (octal radix) has the same value for all radices in which '7' is a valid digit, e.g., 7 and 0x7; something like 077 has not. Don't tempt Fate.

>perl -wMstrict -le "print 077" 63