题解 | #重载运算#

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

    def __str__(self):
        print((self.x,self.y))

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

list1=list(map(int,input().split()))
list2=list(map(int,input().split()))

a=Coordinate(list1[0],list1[1])
b=Coordinate(list2[0],list2[1])
print(a+b)