6t1b1h 7t1b 8t1b1 9t1b1h au1b
vk2b wk2b1 xk2b1h yk2b zk2b1
kb3b1 lb3b1h mb3b nb3b1 ob3b1h
913b1h a23b b23b1 c23b1h d23b
ys4b zs4b1 0s4b1h 1s4b 2s4b1