Accepted Python3: One Liner using map()
\nclass Solution:\n    def addToArrayForm(self, A: List[int], K: int) -> List[int]:\n        return list(map(int, list(str(int(\'\'.join(map(str, A))) + K))))\n
```\nclass Solution:\n    def addToArrayForm(self, A: List[int], K: int) -> List[int]:\n        return list(map(int, list(str(int(\'\'.join(map(str, A))) + K))))\n```
['Python', 'Python3']