well, after getting the digits, check if a single digit, if so, add leading zero. Note this also handles the 0->00 case. 
$digits =~ s/^(\d)$/0$1/;  # add leading zero if only one digit
                           # 0->00  1->01 2->02 etc.

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In reply to Re^11: appending a variable by Marshall
in thread appending a variable by pragovnj

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