private void drawTop(Square square) {

		int x = square.getX();
		int y = square.getY();

		if (x == 0) {
			System.out.print(CLOSED_TOP);
			return;
		}

		for (Square neighbor : square.getAdjacencies()) {
			if (neighbor.getX() == x - 1 && neighbor.getY() == y) {
				System.out.print(OPEN_TOP);
				return;
			}
		}

		System.out.print(CLOSED_TOP);
	}