-al a-a aaa aad aaf aak aal ad- ada add adf adk adl af- afa afd aff afk afl aka akd akk akl al- ala ald alf alk all daa dad daf dak dal dda ddd ddf ddk ddl dfa dfd dff dfk dfl dka dkk dkl dl- dla dld dlf dlk dll faa fad faf fak fal fda fdd fdf fdk fdl ffa ffd fff ffk ffl fka fkf fkk fkl fla fld flf fll ka- kaa kad kaf kak kal kda kdf kdk kdl kfa kfd kff kkk kkl kl- kla kld klf la- laa lad laf lak lal lda ldd ldf ldk ldl lfa lfd lff lfk lfl lka lkl lla lld llf llk lll