b1s4s c1s4sr d1s4 e1s4s f1s4sr

0rt4sr 1rt4 2rt4s 3rt4sr 4rt4

piu4 qiu4s riu4sr siu4 tiu4s

e9u4s f9u4sr g9u4 h9u4s i9u4sr

3zv4sr 4zv4 5zv4s 6zv4sr 7zv4