a-a a-c a-z aaa aac aak aao aau aaz ac- aca acc ack aco acu acz aka akc akk ako aku aoa aoc aok aoo aou au- aua auc auk auo auz az- aza azo azu azz c-- caa cac cak cao cau caz cca ccc cck cco ccu ccz cka ckc cko co- coa coc cok coo cou coz cua cuc cuk cuo cuu cuz cz- czc czk czo k-z ka- kaa kac kak kao kau kaz kca kcc kck kcu kkc kkk kku koa koc kok koo kou koz kuc kuk kuu kzo oaa oac oak oao oau oc- oca occ ock oco ocu ocz oka okc okk oko oku oo- ooa ooc ook ooo ou- oua ouc ouk ouo oza ozo ozu ozz ua- uaa uac uak uao uau uaz uca ucc uck uco ucu uka ukc ukk uku ukz uoa uoc uok uoo uua uuc uuu uza uzo uzu zaa zac zak zao zaz zco zka zo- zoa zoc zok zoo zou zuc zuk zuz zzz