a-a a-c a-z aaa aac aah aak aao aay aaz ac- aca acc ach ack aco acy acz aha ahc ahh ahk aho ahy ahz aka akc akh akk ako aoa aoc aoh aok aoo ay- aya ayc ayh ayk ayo ayz az- aza azo azy azz c-- caa cac cah cak cao cay caz cca ccc cch cck cco ccz ch- cha chc chh chk cho chy chz cka ckc ckh cko cky co- coa coc coh cok coo coy coz cya cyc cyk cyo cz- czc czk czo haa hac hah hak hao hay haz hca hcc hch hck hco hcy hha hhc hhh hhk hho hhy hhz hka hkh hkk hko hoa hoc hoh hok hoo hoy hy- hya hyc hyh hyo hyy hzo hzy k-z ka- kaa kac kah kak kao kay kaz kca kcc kch kck kha khh khk kho khz kkc kkh kkk kky koa koc koh kok koo koy koz kya kyc kyo kyz kzo kzy oaa oac oah oak oao oc- oca occ och ock oco ocz oha ohc ohh oho oka okc okk oko oo- ooa ooc ooh ook ooo oya oyo oza ozo ozz yaa yac yah yak yao yay yaz yca ycc ych yco ycy yha yhc yka ykk yoc yok yoo yoy yyc yyy yyz yzy zaa zac zah zak zao zay zaz zco zha zhc zho zka zo- zoa zoc zok zoo zzy zzz