a-a a-i a-z aaa aaf aag aai aak aao aar aas aaz af- afa aff afg afi afk afo afr afs afz ag- aga agf agg agi agk ago agr ags agz ai- aia aif aig aii aik aio air ais aiz aka akg aki akk ako akr aks aoa aof aog aoi aok aoo aor aos ar- ara arf arg ari ark aro arr ars arz as- asa asf asg asi ask aso asr ass asz az- aza azf azg azi azo azs azz faa faf fag fai fak fao far fas faz ffa fff ffg ffi ffk ffo ffr ffs ffz fga fgf fgg fgi fgr fgs fgz fia fif fig fii fik fir fis fiz fka fkf fkg fki fkk foa fof fog foi fok foo for fos foz fra frf frg fri frk fro frr frs fsa fsf fsg fsi fsk fso fsr fss gaa gaf gag gai gak gao gar gas gaz gfa gff gfi gfk gfo gfr gfs gfz gga ggg ggi ggo ggr ggs ggz gia gif gig gii gik gio gir gis giz gka gko gks goa gof gog goi gok goo gor gos goz gra grf grg gri grk gro grr grs gsa gsf gsg gsi gsk gso gsr gss gza gzo gzr i-f ia- iaa iaf iag iai iao iar ias iaz ifa iff ifg ifi ifo ifr ifs ifz iga igf igg igi igk igo igr igs iia iif iii iio iir iis ika ikf iki ikk iko ikr iks io- ioa iof iog ioi ioo ior ios ir- ira irf irg iri irk iro irr irs is- isa isf isg isi isk iso isr iss iza izi izo izz k-z ka- kaa kaf kag kai kak kao kar kas kaz kfa kff kfg kfi kfo kfs kga kgf kgi kgo kgs kia kif kig kii kik kio kir kis kiz kki kkk kkr kks koa kof kog koi kok koo kor kos koz kra krf krg kri krk kro krr krs ksa ksf ksg ksi ksk kso ksr kss kzo o-i oaa oaf oag oai oak oao oar oas of- ofa off ofg ofi ofo ofr ofs ofz oga ogf ogg ogi ogo ogs oia oif oii oik oio oir ois oiz oka okg oki okk oko okr oks oo- ooa oof oog ooi ook ooo oor oos or- ora orf org ori ork oro orr ors orz os- osa osf osg osi osk oso osr oss oza ozo ozs ozz ra- raa raf rag rai rak rao rar ras raz rfa rff rfg rfi rfk rfo rfr rfs rfz rga rgf rgg rgi rgk rgo rgr rgs ria rif rig rii rik rio rir ris riz rkf rkg rkk rko rks rkz roa rof rog roi rok roo ror ros roz rra rrf rrg rri rrk rrr rrs rsa rsf rsg rsi rsk rso rsr rss rza rzo saa saf sag sai sak sao sar sas saz sfa sff sfg sfi sfk sfo sfr sfs sfz sga sgf sgg sgi sgk sgo sgr sgs sia sif sig sii sik sio sir sis sk- ska skf skg ski skk sko skr sks soa sof sog soi sok soo sor sos soz sr- sra srf srg sri srk sro srr srs ss- ssa ssf ssg ssi ssk sso ssr sss ssz sza szi szr z-g zaa zaf zag zai zak zao zar zas zaz zfa zfr zfs zgg zgi zgs zia zif zig zik zio zir zis ziz zka zks zo- zoa zof zog zoi zok zoo zor zos zro zrs zsa zsg zsi zsz zzr zzs zzz