2s4ft 1s4f 0s4ftv zs4ft ys4f

d23f c23ftv b23ft a23f 913ftv

ob3ftv nb3ft mb3f lb3ftv kb3ft

zk2ft yk2f xk2ftv wk2ft vk2f

au1f 9t1ftv 8t1ft 7t1f 6t1ftv