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

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


def add_vectors(v1, v2):
    a = Vector(v1[0], v1[1])
    b = Vector(v2[0], v2[1])
    result = a + b
    return [result.x, result.y]