a-a a-c a-z aaa aac aah aak aas aaz ac- aca acc ach ack acs acz aha ahc ahh ahk ahs ahz aka akc akh akk aks as- asa asc ash ask ass asz az- aza azs azz c-- caa cac cah cak cas caz cca ccc cch cck ccs ccz ch- cha chc chh chk chs chz cka ckc ckh cks csa csc csh csk css csz cz- czc czk haa hac hah hak has haz hca hcc hch hck hcs hha hhc hhh hhk hhs hhz hka hkh hkk hks hsa hsc hsh hsk hss hsz hzs k-z ka- kaa kac kah kak kas kaz kca kcc kch kck kcs kha khh khk khs khz kkc kkh kkk kks ksa ksc ksh ksk kss saa sac sah sak sas saz sca scc sch sck scs sh- sha shc shh shk shs sk- ska skc skh skk sks ss- ssa ssc ssh ssk sss ssz sza zaa zac zah zak zas zaz zcs zha zhc zhs zka zks zsa zsh zsz zzs zzz