Line 10 -> 2B || !2B

class InspectorDuck:
    c = 0

    def __init__(self, val):
        self.val = val

    def __eq__(self, other):
        self.c += 1
        print(f"Calling __eq__ on {self}, it is {self.c} time we are doing this")
        return True  # change this to "return False" to stop the world from burning

    def __str__(self):
        return str(self.val)


a = [InspectorDuck(5)]
b = [InspectorDuck(4)]
a.append(b)
b.append(a)

print(a == b)