a-a a-c a-z aaa aac aad aan aas aaz ac- aca acc acd acn acs acz ad- ada adc add adn ads adz an- ana anc and ann ans anz as- asa asc asd asn ass asz az- aza azd azn azs azz c-- caa cac cad can cas caz cca ccc ccd ccn ccs ccz cda cdc cdd cdn cds cdz cn- cna cnc cnd cnn cns csa csc csd csn css csz cz- czc czd daa dac dad dan das daz dca dcc dcd dcn dcs dda ddc ddd ddn dds ddz dna dnc dnd dnn dns dnz dsa dsc dsd dsn dss dsz dza dzd dzs naa nac nad nan nas naz nca ncc ncd ncn ncs nda ndc ndd ndn nds nna nnc nnn nns nnz nsa nsc nsd nsn nss nsz nzd nzs nzz saa sac sad san sas saz sca scc scd scn scs sda sdc sdd sdn sds sdz sna snc snd snn sns ss- ssa ssc ssd ssn sss ssz sza szd zaa zac zad zan zas zaz zcs zds znc znd znn zns zsa zsz zzs zzz