R+E3-1R+E2-1R+E2-2R+E3-2R+E-1R+E3-3R+E3-4R+E3-5R+E2-3R+E2-4R+E-2R+E2-5R+E2-6R+E2-7R+E-3R+E-4R+E2-8R+E-5R+E2-9R+E2-10