# translate roman number strings to int


class Solution:
    def romanToInt(self, s: str) -> int:
        roman_map = {"I": 1, "V": 5, "X": 10, "L": 50, "C": 100, "D": 500, "M": 1000}
        num = 0
        prev_value = 0

        for char in reversed(s):
            value = roman_map[char]
            if value < prev_value:
                num -= value
            else:
                num += value
            prev_value = value

        return num