题解 | #重载运算#

class Coordinate:
    def __init__(self, x, y):
        self.x = x
        self.y = y

    def __add__(self, other):
        return Coordinate(self.x + other.x, self.y + other.y)


xy_1 = input()
xy_2 = input()

x_1, y_1 = map(int, xy_1.split())
x_2, y_2 = map(int, xy_2.split())

c1 = Coordinate(x_1, y_1)
c2 = Coordinate(x_2, y_2)

c = c1 + c2
print(f"({c.x}, {c.y})")