"""Test code.
"""
from vector import Vector2D


def main():
    v1 = Vector2D(2, -2)
    print(v1)
    v2 = Vector2D(2, 3)
    print(v2)
    v3 = v1 + v2
    print(v3)
    print("Hello world")
    print("Another world!")


if __name__ == "__main__":
    main()
