class Coordinate: def __init__(self, a, b): self.a = a self.b = b def __str__(self): return '(%s, %s)' % (self.a, self.b) def __add__(self, other): return Coordinate(self.a + other.a, self.b + other.b) x = [int(i) for i in input().split()] y = [int(i) ...