-ic a-a a-b a-c a-i a-t aaa aab aac aag aai aar aat aau ab- aba abb abc abg abi abr abt abu ac- aca acb acc acg aci acr act acu ag- aga agb agc agg agi agr agt agu ai- aia aib aic aig aii air ait aiu ar- ara arb arc arg ari arr art aru at- ata atb atc atg ati atr att atu au- aua aub auc aug aui aur aut b-u baa bab bac bag bai bar bat bau bba bbb bbc bbg bbi bbr bbt bbu bca bcb bcc bcg bci bcr bct bcu bga bgb bgc bgg bgi bgr bgt bgu bi- bia bib bic big bii bir bit biu bra brb brg bri brr brt bru bta btb btc btg bti btr btt btu bua bub buc bug bui bur but buu c-- caa cab cac cag cai car cat cau cba cbb cbc cbg cbi cbr cbt cbu cca ccb ccc ccg cci ccr cct ccu cga cgb cgc cgg cgi cgr cgt cgu ci- cia cib cic cig cii cir cit ciu cra crb crc crg cri crr crt cru cta ctb ctc ctg cti ctr ctt ctu cua cub cuc cug cui cur cut cuu gaa gab gac gag gai gar gat gau gba gbc gbg gbi gbr gbt gbu gca gcb gcc gcg gci gcr gct gcu gga ggb ggc ggg ggi ggr ggt ggu gia gib gic gig gii gir git giu gra grb grc grg gri grr grt gru gta gtb gtc gtg gti gtr gtt gtu gu- gua gub guc gug gui gur gut guu ia- iaa iab iac iag iai iar iat iau iba ibb ibc ibg ibi ibr ibt ibu ica icb icc icg ici icr ict icu iga igb igc igg igi igr igt igu iia iib iic iii iir iit iiu ir- ira irb irc irg iri irr irt iru ita itb itc itg iti itt itu iu- iua iub iuc iug iui iur iut ra- raa rab rac rag rai rar rat rau rba rbb rbc rbg rbi rbr rbt rbu rca rcb rcc rcg rci rcr rct rcu rga rgb rgc rgg rgi rgr rgt ria rib ric rig rii rir rit rra rrb rrc rrg rri rrr rrt rru rta rtb rtc rtg rti rtr rtt rtu rua rub ruc rug rui rur rut ruu taa tab tac tag tai tar tat tau tba tbb tbc tbg tbi tbr tbt tbu tca tcb tcc tcg tci tcr tct tcu tga tgb tgc tgg tgi tgr tgt tgu tia tib tic tig tii tir tit tiu tra trb trc trg tri trr trt tru tta ttb ttc ttg tti ttr ttt ttu tua tub tuc tug tui tur tut tuu ua- uaa uab uac uag uai uar uat uau uba ubb ubc ubg ubi ubr ubt ubu uca ucb ucc ucg uci ucr uct ucu uga ugb ugc ugg ugi ugr ugt ugu uia uib uic uig uii uir uit uiu ur- ura urb urc urg uri urr urt uru uta utb utc uti utr utt utu uua uuc uug uur uut uuu

a-ii aaaa aaab aaac aaai aaar aaba aabb aabc aabi aabt aaca aacb aacc aaci aacr aact aacu aaib aaic aaii aara aarc aari aart aaru aata aatc aatt abaa abab abac abag abai abar abat abau abb- abba abbb abbi abbr abbt abca abcb abcc abci abcr abct abia abib abic abig abir abit abiu abra abrc abri abta abtu abua abug abut ac-t acaa acab acac acag acai acar acat acba acca accc acci acct accu acga acgi acgr aci- acia acic acir acr- acra acrc acri acrr acta actc actg acti actt actu acu- acur acut agac agag agai agar agat agau agba agca agcc agct agga aggi aggu agia agib agic agig agii agir agit agra agri agta agtr agua agui agur agut aiai aiba aica aicc aicr aiga aiia aiib aiic aiir aira airi airt aita aiti aitr aitt aitu aiui arab arac arag arai arar arat arau arba arbi arc- arca arci arct arga argb argi aria arib arig arii arit arr- arra arrc arrg arri arrr arrt arru arta artc arti artr arua arub arug arui arut at-t ataa atab atac atai atar atat atca atcc atcr atia atic atit atiu atra atrc atri atru atta atti attr attu atua atub atuc atug atur auaa auca auci auct auga augi aur- aura auri aut- auug ba-i baaa baar baat baba babb babi babr babu bac- baca bacc baci bact baga bagg bagi bagt baia baib baic baig bair bait bar- bara barb barc barg bari barr bart baru bata batc bati batt batu bau- baug baur bbau bbbb bbci bbga bbrc bbrg bcaa bcar bcat bcbc bcbg bcca bccc bcci bcia bcit bcra bcru bctc bcuc bgca bgia biar biat biba bibb bibi bica bicc bicg bici biga bigb bigc bigg bigt bigu bira birb birg biri birr birt biru bita bitc bitt bitu brab brac brag brai brat brau brca brcb bria bric brig brit brrr brtc bruc brug brut btaa btcc btrc btrt bttb buar buat buba bubb bubi bubu buca bucc buci bucu buga bugg bugi buic buir buit buiu bur- bura burb burg buri burr burt buru but- buta buti butt caaa caab caac caat caba cabg cabi cabu cac- caca cacc caci cacr caga cagg cagi cagr caia caib caic cair cait caiu cara carb carc cari carr cart cat- cata catb catc cati catt catu cauc caut cbac cbar cbat cbbc cbca cbcc cbcr cbct cbcu cbga cbgb cbia cbir cbit cbrt cbta cbtc ccaa ccab ccac ccag ccai ccar ccat ccba ccbc ccca cccb cccc ccci cccu ccga ccgc ccgt ccic ccii ccir ccra ccrc ccrg ccri ccrt cctb cctc cctt ccuc ccut cgac cgcc cgcg cgtu ciaa ciar ciat ciau ciba cibc cibi cica cicc cici cicr cict cicu ciga cigi cigu ciia ciii ciit cira cirb circ ciri cirr