Fast no comment (no time to explain version)
IntuitionApproachComplexity
Time complexity:

Space complexity:
Code
# Intuition
<!-- Describe your first thoughts on how to solve this problem. -->

# Approach
<!-- Describe your approach to solving the problem. -->

# Complexity
- Time complexity:
<!-- Add your time complexity here, e.g. $$O(n)$$ -->

- Space complexity:
<!-- Add your space complexity here, e.g. $$O(n)$$ -->

# Code
```python3 []
class Solution:
    def isFascinating(self, n: int) -> bool:
        
        num = str(n)+str(2*n)+str(3*n)
        abc = True
        new = []
        for digit in num:
            if digit in new:
                abc = False
            new.append(digit)

        true = ('0' in num) == False
        if len(num)==9 and true and abc == True:
            return True
        else:
            return False
```
['Python3']