题解 | #重载运算#

class Coordinate(object):
    def __init__(self,x,y):
        self.x = x
        self.y = y
    
	#描述信息
    def __str__(self):
        return '({}, {})'.format(self.x,self.y)
    
	#模拟数字类型
    def __add__(self,other):
        return Coordinate(self.x+other.x,self.y+other.y)

x1,y1 = map(int,input().split(' '))
x2,y2 = map(int,input().split(' '))

c1 = Coordinate(x1,y1)
c2 = Coordinate(x2,y2)
print(c1+c2)