a-a a-c a-z aaa aac aak aar aas aay aaz ac- aca acc ack acr acs acy acz aka akc akk akr aks ar- ara arc ark arr ars ary arz as- asa asc ask asr ass asy asz ay- aya ayc ayk ayr ays ayz az- aza azs azy azz c-- caa cac cak car cas cay caz cca ccc cck ccr ccs ccz cka ckc cks cky cra crc crk crr crs cry crz csa csc csk csr css csy csz cya cyc cyk cyr cys cz- czc czk k-z ka- kaa kac kak kar kas kay kaz kca kcc kck kcr kcs kkc kkk kkr kks kky kra krc krk krr krs kry ksa ksc ksk ksr kss kya kyc kyr kys kyz kzy ra- raa rac rak rar ras ray raz rca rcc rcr rcs rkc rkk rks rky rkz rra rrc rrk rrr rrs rsa rsc rsk rsr rss ry- rya ryc ryk ryr rys ryy ryz rza rzy saa sac sak sar sas say saz sca scc sck scr scs sk- ska skc skk skr sks sky sr- sra src srk srr srs sry ss- ssa ssc ssk ssr sss ssz sy- sya syc syk syr sys sza szr yaa yac yak yar yas yay yaz yca ycc ycs ycy yka ykk yra yrc yrs ysa ysc ysk ysr yss ysy ysz yyc yys yyy yyz yzr yzy zaa zac zak zar zas zay zaz zcs zka zks zrs zsa zsz zzr zzs zzy zzz