x9sb2a w9sb2 v9sb u9sb2a t9sb2

8isb2 7isb 6isb2a 5isb2 4isb

jsrb isrb2a hsrb2 gsrb fsrb2a

u1qb2a t1qb2 s1qb r1qb2a q1qb2

5aqb2 4aqb 3aqb2a 2aqb2 1aqb