a-be a-ii aaaa aaab aaac aaad aaae aaai aaba aabb aabc aabd aabi aabt aaca aacb aacc aacd aace aaci aact aada aadc aade aadi aadt aaea aaec aage aaib aaic aaii aata aatc aatt abaa abab abac abad abae abag abai abat abb- abba abbb abbe abbi abbt abca abcb abcc abcd abci abct abda abdi abec abed abee abet abgd abia abib abic abid abie abig abit abta ac-t acaa acab acac acad acae acag acai acat acba acca accc accd acce acci acct acda acdb acdc acde acdi acdt ace- acea acec aced acet acga acgi aci- acia acic acid acie acta actc acte actg acti actt adaa adab adac adad adae adag adai adat adba adbc adbi adcc adci adda addc addd adde addi adea adeb adee adet adia adib adic adie adig adit adta aeac aebi aecb aeci aect aede aedt aega aeit aeta aetc aett agac agad agag agai agat agba agca agcc agce agct agda agde agea aged agee agei aget agga agge aggi agia agib agic agid agie agig agii agit agta agte aiai aiba aica aicc aicd aice aida aidb aidc aide aidi aidt aiea aiee aiet aiga aiia aiib aiic aiid aita aite aiti aitt at-t ataa atab atac atad atae atai atat atca atcc atdi atdt atea atec ated atee atei atia atic atid atie atit atta atte atti ba-i baaa baad baat baba babb babe babi bac- baca bacc bace baci bact bada badb badd bade badi baed baga bage bagg bagi bagt baia baib baic baid baie baig bait bata batc bate bati batt bbad bbbb bbci bbdd bbeb bbet bbga bcaa bcat bcbc bcbg bcca bccc bcci bcda bcde bcec bcet bcia bcie bcit bctc bdbc bddc bdii bead beag beat beba bebb bebe bebi beca beci beda bede bedi beeb beed beeg beet bega begg begi beia beic beit beta betc bete beti bett bgca bgia biad biat biba bibb bibe bibi bica bicc bice bicg bici bida bide bidi bieb bied biet biga bigb bigc bigd bige bigg bigt bita bitc bitd bite bitt btaa btcc btdt btec btie bttb c-cd caaa caab caac caat caba cabe cabg cabi cac- caca cacc cace caci cada cadc cadd cade cadi caec caei caga cage cagg cagi caia caib caic caid cait cat- cata catb catc catd cate cati catt cbac cbat cbbc cbca cbcc cbce cbct cbdb cbdc cbdi cbea cbec cbee cbet cbga cbgb cbia cbid cbit cbta cbtc ccaa ccab ccac ccad ccag ccai ccat ccba ccbc ccca cccb cccc ccci ccdc ccdi cced ccee ccga ccgc ccgt ccic ccid ccii cctb cctc cctt cd-e cdaa cdac cdad cdai cdba cdda cddb cdec cdic cdii ceac cead ceat ceba cec- ceca cece ceci cect ceda cedd cede cedi cedt ceeb ceec cege cet- ceta cete ceti cgac cgcc cgcg cged ciaa ciat ciba cibc cibe cibi cica cicc cici cict cida cidc cide cidg cidi cidt ciee ciga cigi ciia ciid ciii ciit cita citb cite citg citi citt ctab ctae ctag ctba ctbi ctca ctec ctge ctia ctic ctta daab daad daae daag daba dabb dabt daca dace daci dact dada dade dadi daeb daga dage dagg dagi daia daid daie daig dait data date dati datt dbag dbcc dbit dbtt dcbc dcca dccb dccc dcci dcct dcdb dcia dcii dctc dddd ddie deac dead deae deba debe debi debt dec- deca decc decd dece deci dect deda dedd dede dedi deeb deed deeg deet dega dege degi deid deie deit deta dete dgac dgca dgeg dgge dgia dia- diab diac diad diag diat diba dibb dibe dica dice dici dict dida dide didi diea dieb died diet diga dige digg digi diii dita dite diti ditt dtaa dtac dtcc dted eaba eaca eacc eada eadb eadd eadi eaec eaga eage eata eate eati ebac ebba ebbc ebcc ebed ebic ebid ebit ecaa ecac ecad ecai ecat ecbc ecbe ecca eccb eccc ecce ecci ecct ecdc eced ecib ecig ecit ect- ecta ectc edac edad edag edca edda eddc edde eddi ede- edea edei edge edia edie edit edta eeca eede eeea eeee eega eeta eetc eete egaa egad egae egat egba egbe egcc egcg egea egec egee eggb egge eggi egta egte eica eid- eide eidi eiec eied eiei eige eigg eita eitb eitc eiti etag etai etat etbc etcc etec etee etic etta ette etti gaba gabb gabe gabi gabt gace gada gadd gade gadi gaea gaec gaed gaga gage gagg gagi gaia gaid gaie gaig gait gata gatc gate gati gatt gbag gbde gc-c gcaa gcat gcbc gccc gcda gcet gcic gcii gctc gdca gdci gddb geab gead geai geat geba gebe gebi geca gece geda gedd gede gedi geed geet gege gegg geia geic geie geig geit geta getb gete getg geti gett ggbt gggg giaa giac giad giai giat giba gibb gibe gica gida gidc gidd gide gidi gied giet giga gige gigg gigi gita gite gtaa gtea gtta i-be iaaa iaac iaai iaat iaba iaca iacc iact iadb iadc iadt iaea iaec iaia iata iatc iate iati ibac ibad ibat ibca ibea ibec ibed ibeg ibet ibga ibge ibia ibid ibie ibtb ibtc icaa icab icac icad icag icai icat icbc icbd icca iccb iccc icci icct icdc icdd icde icea icec iced icee icet icga icgc icta idad idae idat idbe idca idce idda idea idec ided idee idia idic idid idie idig idta ieac ieat iecc ieet ieie ieta iett igac igad igba igbc igcc igea iget igga igia iiac iica iicd iida iide iied iiie iiii iiit iita iitt itaa itac itai itat itbe itea itec itet itgc itia itic itie itta taa- taag taat taba tabb tabc tabe tabi taca tacc tace taci tact tada tade tadg taec taga tage tagg tagi taia taig tait tata tatb tate tati tatt tbca tbcb tbcc tbcd tbce tbit tbta tcad tcca tccc tcdd tcga tctc tdac tddb teac tead teat teba teca tect teda