Question: class A: def str_(self): return A class B(A): def _init__(self): super(). _init__() class C(B): def _init__(self): super().__init__() def main(): b = B() a = A

class A: def str_(self): return "A" class B(A): def _init__(self): super(). _init__() class C(B): def _init__(self): super().__init__() def main(): b = B() a = A ( ) C = C() print(a, b, c) main()

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