python Solution
\nclass Solution:\n    def destCity(self, paths: List[List[str]]) -> str:\n        return (set([p[1] for p in paths]) - set([p[0] for p in paths])).pop()\n
```\nclass Solution:\n    def destCity(self, paths: List[List[str]]) -> str:\n        return (set([p[1] for p in paths]) - set([p[0] for p in paths])).pop()\n```
['Python', 'Python3']