class MovablePoint implements Movable {
	int x;
	int y;
	int xSpeed;
	int ySpeed;

	//Constructors
	public MovablePoint(int x, int y, int xSpeed, int ySpeed) {
		this.x = x;
		this.y = y;
		this.xSpeed = xSpeed;
		this.ySpeed = ySpeed;
	}

	//Movement Methods
	public void moveUp() {
		y -= ySpeed;
	}

	public void moveDown() {
		y += ySpeed;
	}

	public void moveLeft() {
		x -= xSpeed;
	}

	public void moveRight() {
		x += xSpeed;
	}


	//toString()
	public String toString() {
		return "(" + x + "," + y + ")";
	}
}



class MovableCircle implements Movable {
	private int radius;
	private MovablePoint center;

	public MovableCircle(int x, int y, int xSpeed, int ySpeed, int radius) {
		center = new MovablePoint(x, y, xSpeed, ySpeed);
		this.radius = radius;
	}

	public void moveUp() {
		center.moveUp();
	}

	public void moveDown() {
		center.moveDown();
	}

	public void moveLeft() {
		center.moveLeft();
	}

	public void moveRight() {
		center.moveRight();
	}

	public String toString() {
		return center.toString() + ", radius=" + radius;
	}
}