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Roman Numeral Converter

Convert Roman numerals and numbers

Input

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Reference

M = 1000CM = 900D = 500CD = 400C = 100XC = 90L = 50XL = 40X = 10IX = 9V = 5IV = 4I = 1

Rules: I=1, V=5, X=10, L=50, C=100, D=500, M=1000. A symbol repeats at most three times, and only IV, IX, XL, XC, CD and CM are valid subtractive pairs.

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