eu1sf fu1sfl gu1s hu1sf iu1sfl

3k2sfl 4k2s 5k2sf 6k2sfl 7k2s

sb3s tb3sf ub3sfl vb3s wb3sf

h23sf i23sfl j23s k23sf l23sfl

6s4sfl 7s4s 8s4sf 9s4sfl at4s