题解 | #重载运算#

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

    def __str__(self):    
        print(f"({self.x},{self.y})")

    def __add__(self,x,y):
        sumx = self.x+x
        sumy = self.y+y
        print(f"({sumx}, {sumy})")

p1= list(map(int,input().split()))
p2= list(map(int,input().split()))

c1 = Coordinate(p1[0],p1[1])
c2 = Coordinate(p2[0],p2[1])
c1.__add__(c2.x,c2.y)