2025-08-15 13:20:07 +0000 UTC

class Solution:
    def replaceDigits(self, s: str) -> str:
        res = []
        for i in range(0, len(s) - 1, 2):
            char, digit = s[i], int(s[i + 1])
            res.append(char)
            res.append(chr(ord(char) + digit))
        if len(s) % 2 != 0:
            res.append(s[-1])
        return "".join(res)