2o1r1 3o1r1f 4o1r 5o1r1 6o1r1f

rf2r1f sf2r tf2r1 uf2r1f vf2r

g62r h62r1 i62r1f j62r k62r1

5w3r1 6w3r1f 7w3r 8w3r1 9w3r1f

un4r1f vn4r wn4r1 xn4r1f yn4r