a-a a-c a-z aaa aac aak aap aas aaz ac- aca acc ack acp acs acz aka akc akk akp aks ap- apa apc apk app aps as- asa asc ask asp ass asz az- aza azp azs azz c-- caa cac cak cap cas caz cca ccc cck ccp ccs ccz cka ckc cks cpa cpc cpk cpp cps cpz csa csc csk csp css csz cz- czc czk k-z ka- kaa kac kak kap kas kaz kca kcc kck kcp kcs kkc kkk kkp kks kpa kpc kpk kpp kps ksa ksc ksk ksp kss p-p paa pac pak pap pas paz pca pcc pck pcp pcs pka pkc pkp pks ppa ppc ppk ppp pps ppz ps- psa psc psk psp pss pzc pzk pzp saa sac sak sap sas saz sca scc sck scp scs sk- ska skc skk skp sks spa spc spk spp sps spz ss- ssa ssc ssk ssp sss ssz sza szp zaa zac zak zap zas zaz zcs zka zks zpc zpp zsa zsz zzs zzz