public static String invertCrossPiece(Cube cube, Side side) {
		String a = "";
		TileColor color = cube.getFace(side);
		if (color.equals(TileColor.blue)) {
			a = ",F,DI,L,D";
		} else if (color.equals(TileColor.red)) {
			a = ",R,DI,F,D";
		} else if (color.equals(TileColor.green)) {
			a = ",B,DI,R,D";
		} else if (color.equals(TileColor.orange)) {
			a = ",L,DI,B,D";
		}
		cube.doAlgorithm(a);
		return a;
	}