Python3 Solution
\n\nclass Solution:\n    def isFascinating(self, n: int) -> bool:\n        return sorted(str(n)+str(2*n)+str(3*n))==list(map(str,range(1,10)))\n
\n```\nclass Solution:\n    def isFascinating(self, n: int) -> bool:\n        return sorted(str(n)+str(2*n)+str(3*n))==list(map(str,range(1,10)))\n```
['Python', 'Python3']