For those interested in doing more "real" roman numeral operations, Math::Roman handles much of this for you: 
use Math::Roman 'roman';

my $y = roman 'MCMLXXVII';
print "$y\n" while $y++ < 2002;

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In reply to Re: symbolic increment of roman numerals by Fastolfe
in thread symbolic increment of roman numerals by PetaMem

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