a-a a-b a-c aaa aab aac aag aak aam aar aas aau ab- aba abb abc abg abk abm abr abs abu ac- aca acb acc acg ack acm acr acs acu ag- aga agb agc agg agk agm agr ags agu aka akb akc akg akk akm akr aks aku ama amb amc amg amk amm amr ams amu ar- ara arb arc arg ark arm arr ars aru as- asa asb asc asg ask asm asr ass asu au- aua aub auc aug auk aum aur aus b-u baa bab bac bag bak bam bar bas bau bba bbb bbc bbg bbk bbm bbr bbs bbu bca bcb bcc bcg bck bcm bcr bcs bcu bga bgb bgc bgg bgk bgm bgr bgs bgu bka bkb bkc bkg bkk bkm bkr bks bma bmb bmc bmg bmk bmm bmr bms bmu bra brb brg brk brm brr brs bru bsa bsb bsc bsg bsk bsm bsr bss bsu bua bub buc bug buk bum bur bus buu c-- caa cab cac cag cak cam car cas cau cba cbb cbc cbg cbk cbm cbr cbs cbu cca ccb ccc ccg cck ccm ccr ccs ccu cga cgb cgc cgg cgm cgr cgs cgu cka ckb ckc ckm cks cma cmb cmc cmg cmk cmm cmr cms cmu cra crb crc crg crk crm crr crs cru csa csb csc csg csk csm csr css csu cua cub cuc cug cuk cum cur cus cuu gaa gab gac gag gak gam gar gas gau gba gbc gbg gbk gbm gbr gbs gbu gca gcb gcc gcg gck gcm gcr gcs gcu gga ggb ggc ggg ggm ggr ggs ggu gka gkb gkm gks gma gmb gmc gmg gmm gmr gms gra grb grc grg grk grm grr grs gru gsa gsb gsc gsg gsk gsm gsr gss gsu gu- gua gub guc gug guk gum gur gus guu ka- kaa kab kac kag kak kam kar kas kau kba kbb kbc kbk kbm kbr kbs kbu kca kcb kcc kcg kck kcm kcr kcs kcu kga kgb kgc kgm kgs kgu kkb kkc kkk kkm kkr kks kku kma kmb kmc kmg kmk kmm kms kmu kra krc krg krk krr krs kru ksa ksb ksc ksg ksk ksm ksr kss ksu kub kuc kug kuk kum kur kus kuu m-r maa mab mac mag mak mam mar mas mau mba mbb mbc mbg mbk mbm mbr mbs mbu mc- mca mcb mcc mcg mck mcm mcr mcs mcu mga mgb mgc mgk mgm mgr mgs mgu mka mkb mkc mkg mkk mkm mkr mks mku mma mmb mmc mmg mmk mmm mmr mms mmu mra mrb mrc mrg mrk mrm mrr mrs mru msa msb msc msg msk msm msr mss msu mua mub muc mug muk mum mur mus muu ra- raa rab rac rag rak ram rar ras rau rba rbb rbc rbg rbk rbm rbr rbs rbu rca rcb rcc rcg rcm rcr rcs rcu rga rgb rgc rgg rgk rgr rgs rkb rkc rkg rkk rkm rks rku rma rmb rmc rmg rmm rmr rms rra rrb rrc rrg rrk rrm rrr rrs rru rsa rsb rsc rsg rsk rsm rsr rss rsu rua rub ruc rug ruk rum rur rus ruu saa sab sac sag sak sam sar sas sau sba sbb sbc sbg sbk sbm sbr sbs sbu sca scb scc scg sck scm scr scs scu sga sgb sgc sgg sgk sgm sgr sgs sgu sk- ska skb skc skg skk skm skr sks sku sma smb smc smg smk smm smr sms smu sr- sra srb src srg srk srm srr srs ss- ssa ssb ssc ssg ssk ssm ssr sss ssu sua sub suc sug suk sum sur sus suu ua- uaa uab uac uag uak uam uar uas uau uba ubb ubc ubg ubk ubr ubs ubu uca ucb ucc ucg uck ucm ucr ucs ucu uga ugb ugc ugg ugk ugm ugr ugs ugu uka ukb ukc ukk ukr uku um- uma umb umc umg umm umr ums umu ur- ura urb urc urg urk urm urr urs uru usa usb usc usg usk usm usr uss usu uua uuc uug uum uur uus uuu

a-ak aaaa aaab aaac aaam aaar aaas aaba aabb aabc aabm aaca aacb aacc aack aacm aacr aacs aacu aaka aaku aama aamb aamc aamr aams aara aarc aarm aars aaru aasa aasc aasm aass aasu aaus abaa abab abac abag abak abam abar abas abau abb- abba abbb abbr abbs abca abcb abcc abcr abcs abma abmb abmc abms abra abrc abrs abs- absa abss absu abua abug abuk abum abus acaa acab acac acag acar acas acba acca accc accm accs accu acga acgr acgs acks acma acmc acmg acms acmu acr- acra acrc acrm acrr acrs acsa acsc acsm acss acu- acum acur acus agac agag agam agar agas agau agba agca agcc agga aggu agma agmc agms agra agsa agsg agsm agsu agua agur agus akaa akam akar akas akca akka akku akr- akra aksa aksu akua amaa amac amag amam amar amas amb- amba ambr ambs ambu amca amcc amcs amga amka amm- amma ammu amra amrc amsa amsc amss amua amum amur arab arac arag arak aram arar aras arau arba arbs arc- arca arcm arcs arga argb args arka arks arma armc armm arms armu arr- arra arrc arrg arrk arrr arrs arru ars- arsa arsc arsk arsu arua arub arug arum asaa asab asac asag asak asam asar asas asau asba asbm asbu asc- asca ascb ascc ascr aska askr asks asma asmm asmr asms asra asrc asrg asrm asrs asru assa assc assk assr asss assu asub asum asur asus auaa auca auga augs auks auma aur- aura ausa ausm ausu auug baaa baak baam baar baas baba babb babm babr babs babu bac- baca bacc back bacs baga bagg bags bak- baka bakr baks baku bama bamb bamc bamm bams bamu bar-