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,new):
        return Coordinate(self.x+new.x,self.y+new.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)