scratch_2

class Pointer:
    def __init__(self, loc=0):
        self.location = loc

    def __add__(self, other):
        self.location += other
        return self

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

x = Pointer()
print(x)  # 0
y = x
x += 1
print(x)  # 1
print(y)  # 0