a-a a-c a-z aaa aac aak aam aao aar aas aaz ac- aca acc ack acm aco acr acs acz aka akc akk akm ako akr aks ama amc amk amm amo amr ams amz aoa aoc aok aom aoo aor aos ar- ara arc ark arm aro arr ars arz as- asa asc ask asm aso asr ass asz az- aza azm azo azs azz c-- caa cac cak cam cao car cas caz cca ccc cck ccm cco ccr ccs ccz cka ckc ckm cko cks cma cmc cmk cmm cmo cmr cms co- coa coc cok com coo cor cos coz cra crc crk crm cro crr crs crz csa csc csk csm cso csr css csz cz- czc czk czm czo k-z ka- kaa kac kak kam kao kar kas kaz kca kcc kck kcm kcr kcs kkc kkk kkm kkr kks kma kmc kmk kmm kmo kms kmz koa koc kok kom koo kor kos koz kra krc krk kro krr krs ksa ksc ksk ksm kso ksr kss kzo m-o m-r maa mac mak mam mao mar mas maz mc- mca mcc mck mcm mco mcr mcs mcz mka mkc mkk mkm mko mkr mks mkz mma mmc mmk mmm mmo mmr mms mmz moa moc mok mom moo mor mos moz mra mrc mrk mrm mro mrr mrs mrz msa msc msk msm mso msr mss mza mzm oaa oac oak oam oao oar oas oc- oca occ ock ocm oco ocr ocs ocz oka okc okk oko okr oks om- oma omc omm omo omr oms omz oo- ooa ooc ook oom ooo oor oos or- ora orc ork orm oro orr ors orz os- osa osc osk osm oso osr oss oza ozm ozo ozs ozz ra- raa rac rak ram rao rar ras raz rca rcc rcm rco rcr rcs rkc rkk rkm rko rks rkz rma rmc rmm rmo rmr rms roa roc rok rom roo ror ros roz rra rrc rrk rrm rrr rrs rsa rsc rsk rsm rso rsr rss rza rzm rzo saa sac sak sam sao sar sas saz sca scc sck scm sco scr scs sk- ska skc skk skm sko skr sks sma smc smk smm smo smr sms smz soa soc sok som soo sor sos soz sr- sra src srk srm sro srr srs ss- ssa ssc ssk ssm sso ssr sss ssz sza szr zaa zac zak zam zao zar zas zaz zco zcs zka zks zma zmc zmk zmm zms zo- zoa zoc zok zom zoo zor zos zro zrs zsa zsm zsz zzr zzs zzz