Simple Python Solution
\nclass ParkingSystem:\n\n    def __init__(self, big: int, medium: int, small: int):\n        self.p=[big,medium,small]\n\n    def addCar(self, carType: int) ->
```\nclass ParkingSystem:\n\n    def __init__(self, big: int, medium: int, small: int):\n        self.p=[big,medium,small]\n\n    def addCar(self, carType: int) -> bool:\n        self.p[carType-1]-=1\n        return self.p[carType-1]>=0\n```
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