println """
Digit Values = ${RomanDigits.values()}
M       => ${RomanDigits.parse('M')}
MCXI    => ${RomanDigits.parse('MCXI')}
CMXI    => ${RomanDigits.parse('CMXI')}
MCM     => ${RomanDigits.parse('MCM')}
MCMXC   => ${RomanDigits.parse('MCMXC')}
MMVIII  => ${RomanDigits.parse('MMVIII')}
MMIX    => ${RomanDigits.parse('MMIX')}
MCDXLIV => ${RomanDigits.parse('MCDXLIV')}
MDCLXVI => ${RomanDigits.parse('MDCLXVI')}
"""