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#!/usr/bin/python3
# Challenge 010
#
# Challenge #1
# Write a script to encode/decode Roman numerals. For example, given Roman
# numeral CCXLVI, it should return 246. Similarly, for decimal number 39, it
# should return XXXIX. Checkout wikipedia page for more information.
import sys
import roman
if len(sys.argv)==2:
if sys.argv[1]=="-test":
for i in range(1, 3001):
s = roman.toRoman(i)
n = roman.fromRoman(s)
if i!=n:
print(f"{i} => {s} => {n}")
sys.exit(1)
elif sys.argv[1].isdigit():
n = int(sys.argv[1])
s = roman.toRoman(n)
print(f"{n} => {s}")
else:
s = sys.argv[1]
n = roman.fromRoman(s)
print(f"{s} => {n}")
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