a-a a-c a-z aaa aac aak aan aas aaz ac- aca acc ack acn acs acz aka akc akk akn aks an- ana anc ank ann ans anz as- asa asc ask asn ass asz az- aza azn azs azz c-- caa cac cak can cas caz cca ccc cck ccn ccs ccz cka ckc cks cn- cna cnc cnn cns csa csc csk csn css csz cz- czc czk k-z ka- kaa kac kak kan kas kaz kca kcc kck kcn kcs kkc kkk kkn kks kn- kna knc knk knn ksa ksc ksk ksn kss naa nac nak nan nas naz nca ncc nck ncn ncs nka nkc nkk nkn nks nna nnc nnk nnn nns nnz nsa nsc nsk nsn nss nsz nzs nzz saa sac sak san sas saz sca scc sck scn scs sk- ska skc skk sks sna snc snk snn sns ss- ssa ssc ssk ssn sss ssz sza zaa zac zak zan zas zaz zcs zka zks znc znn zns zsa zsz zzs zzz