题解 | 重载运算

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

    def __str__(self):
        return f'({self.x}, {self.y})'

    def __add__(self, other):
       if isinstance(other, Coordinate):
           return Coordinate(self.x + other.x, self.y + other.y)
x1, y1 = list(map(int, input().split(' ')))
x2, y2 = list(map(int, input().split(' ')))
c1 = Coordinate(x1, y1)
c2 = Coordinate(x2, y2)
print((c1+c2).__str__())