is it a roman numeral by darrenks

#!ruby -n
p~/^M*(CM|CD|D?C?{3})(XC|XL|L?X?{3})(IX|IV|V?I?{3})$/?1:0

Note that non-ascii characters in the above source code will be escaped (such as \x9f).

To protect the system from spam, please input your favorite sport (hint: I believe its name must start with 'g', case insensitive)

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