a-a a-b aaa aab aag aaj aak aan aao aar aas aau ab- aba abb abg abj abk abn abo abr abs abu ag- aga agb agg agj agk agn ago agr ags agu aja ajb ajj ajk ajn ajo ajr ajs aju aka akb akg akj akk akn ako akr aks aku an- ana anb ang anj ank ann ano anr ans anu aoa aob aog aoj aok aon aoo aor aos aou ar- ara arb arg arj ark arn aro arr ars aru as- asa asb asg asj ask asn aso asr ass asu au- aua aub aug auj auk aun auo aur aus b-u baa bab bag baj bak ban bao bar bas bau bba bbb bbg bbk bbn bbo bbr bbs bbu bga bgb bgg bgk bgn bgo bgr bgs bgu bja bjg bjj bjk bjn bjr bjs bju bka bkb bkg bkk bkn bko bkr bks bna bnb bng bnj bnk bnn bno bnr bns bnu boa bob bog boj bok bon boo bor bos bou bra brb brg brj brk brn bro brr brs bru bsa bsb bsg bsj bsk bsn bso bsr bss bsu bua bub bug buj buk bun buo bur bus buu gaa gab gag gaj gak gan gao gar gas gau gba gbg gbj gbk gbn gbo gbr gbs gbu gga ggb ggg ggj ggn ggo ggr ggs ggu gja gjg gjr gka gkb gkn gko gks gna gnb gnn gno gnr gns gnu goa gob gog gok gon goo gor gos gou gra grb grg grj grk grn gro grr grs gru gsa gsb gsg gsj gsk gsn gso gsr gss gsu gu- gua gub gug guj guk gun guo gur gus guu jaa jab jag jaj jak jan jao jar jas jau jba jbg jbj jbk jbo jbr jbs jbu jga jgb jgn jgo jgr jgs jgu jja jjb jjg jjj jjk jjr jjs jju jka jkb jkk jkn jko jkr jks jku jna jng jnj jnn jno jnr jns jnu joa job jog joj jok jon joo jor jos jou jra jrb jrg jrk jrn jro jrr jrs jsa jsb jsg jsj jsk jsn jso jsr jss jsu jub jug juk jun juo jur jus ka- kaa kab kag kaj kak kan kao kar kas kau kba kbb kbk kbn kbo kbr kbs kbu kga kgb kgo kgs kgu kjb kjr kjs kju kkb kkk kkn kkr kks kku kn- kna kng knk knn kno knr knu koa kob kog kok kon koo kor kos kou kra krg krk krn kro krr krs kru ksa ksb ksg ksk ksn kso ksr kss ksu kub kug kuj kuk kun kur kus kuu naa nab nag naj nak nan nao nar nas nau nba nbb nbg nbk nbn nbo nbr nbs nbu nga ngb ngg ngj ngk ngn ngo ngs ngu nja njk njn njs nju nka nkj nkk nkn nko nkr nks nku nna nnb nng nnk nnn nno nns nnu no- noa nob nog noj nok non noo nor nos nou nra nrb nrg nrj nrk nrn nro nrr nrs nru nsa nsb nsg nsk nsn nso nsr nss nsu nua nub nug nuj nuk nun nuo nur nus nuu oaa oab oag oaj oak oan oao oar oas oau ob- oba obb obg obj obk obn obo obr obs obu oga ogg ogn ogo ogs oja ojb ojo ojs oju oka okb okg okj okk oko okr oks oku on- ona onb ong onj onk onn ono onr ons onu oo- ooa oob oog ook oon ooo oor oos or- ora orb org ork orn oro orr ors oru os- osa osb osg osj osk osn oso osr oss osu ou- oua ouk oun ouo our ous ra- raa rab rag raj rak ran rao rar ras rau rba rbb rbg rbk rbn rbo rbr rbs rbu rga rgb rgg rgk rgn rgo rgr rgs rja rjg rjk rjr rkb rkg rkk rko rks rku rna rnb rng rnn rno rnr rns rnu roa rob rog roj rok ron roo ror ros rou rra rrb rrg rrk rrn rrr rrs rru rsa rsb rsg rsj rsk rsn rso rsr rss rsu rua rub rug ruk run ruo rur rus ruu saa sab sag saj sak san sao sar sas sau sba sbb sbg sbj sbk sbn sbo sbr sbs sbu sga sgb sgg sgk sgn sgo sgr sgs sgu sja sjb sjj sjk sjr sjs sju sk- ska skb skg skj skk sko skr sks sku sna snb sng snj snk snn sno snr sns snu soa sob sog soj sok son soo sor sos sou sr- sra srb srg srj srk srn sro srr srs ss- ssa ssb ssg ssj ssk ssn sso ssr sss ssu sua sub sug suk sun suo sur sus suu ua- uaa uab uag uaj uak uan uao uar uas uau uba ubb ubg ubk ubn ubo ubr ubs ubu uga ugb ugg ugk ugn ugo ugr ugs ugu ujo ujs uka ukb ukk ukn ukr uku un- una unb ung unk unn uno unr uns unu uoa uob uog uoj uok uon uoo uor uos ur- ura urb urg urk urn uro urr urs uru usa usb usg usj usk usn uso usr uss usu uua uug uun uur uus uuu