romanNumerals = {"I": 1,
                 "V": 5,
                 "X": 10,
                 "L": 50,
                 "C": 100,
                 "D": 500,
                 "M": 1000,
                 }

def reverse_roman(roman_string):
    solution = 0
    sum = 0
    skipValue = False
    for counter, element in enumerate(roman_string):
        if skipValue:
            skipValue = False
            continue
        if counter+1 < len(roman_string):
            if romanNumerals[roman_string[counter+1]] > romanNumerals[element]:
                sum = romanNumerals[roman_string[counter+1]] - romanNumerals[element]
                solution = solution + sum
                skipValue = True
                continue
        solution = solution + romanNumerals[element]
    return solution

if __name__ == '__main__':
    #These "asserts" using only for self-checking and not necessary for auto-testing
    assert reverse_roman('VI') == 6, '6'
    assert reverse_roman('LXXVI') == 76, '76'
    assert reverse_roman('CDXCIX') == 499, '499'
    assert reverse_roman('MMMDCCCLXXXVIII') == 3888, '3888'
    print('Great! It is time to Check your code!');