n9j21 m9j2 l9j21s k9j21 j9j2

yij2 xij21s wij21 vij2 uij21s

9ri21s 8ri21 7ri2 6ri21s 5ri21

k1h21 j1h2 i1h21s h1h21 g1h2

vah2 uah21s tah21 sah2 rah21s