a-be a-ii aaaa aaab aaac aaad aaae aaai aaar aaba aabb aabc aabd aabi aaca aacb aacc aacd aace aaci aacr aada aadc aade aadi aaea aaec aage aaib aaic aaii aara aarc aard aare aari abaa abab abac abad abae abag abai abar abb- abba abbb abbe abbi abbr abca abcb abcc abcd abci abcr abda abdi abec abed abee aber abgd abia abib abic abid abie abig abir abra abrc abri acaa acab acac acad acae acag acai acar acba acca accc accd acce acci acda acdb acdc acde acdi ace- acea acec aced acer acga acgi acgr aci- acia acic acid acie acir acr- acra acrc acre acri acrr adaa adab adac adad adae adag adai adar adba adbc adbi adcc adci adda addc addd adde addi addr adea adeb adee ader adia adib adic adie adig adir adra adre aeac aebi aecb aeci aede aeer aega aer- aera aerc aerd aeri agac agad agag agai agar agba agca agcc agce agda agde agea aged agee agei ager agga agge aggi agia agib agic agid agie agig agii agir agra agre agri aiai aiba aica aicc aicd aice aicr aida aidb aidc aide aidi aidr aiea aiee aiga aiia aiib aiic aiid aiir aira aird aire airi arab arac arad arae arag arai arar arba arbe arbi arc- arca arce arci arda ardc arde ardi area arec ared aree areg arei arga argb arge argi aria arib arid arie arig arii arr- arra arrc arre arrg arri arrr ba-i baaa baad baar baba babb babe babi babr bac- baca bacc bace baci bada badb badd bade badi badr baed baer baga bage bagg bagi baia baib baic baid baie baig bair bar- bara barb barc bard bare barg bari barr bbad bbbb bbci bbdd bbeb bbga bbrc bbrg bcaa bcar bcbc bcbg bcca bccc bcci bcda bcde bcec bcer bcia bcie bcra bd-r bdbc bddc bdii bead beag bear beba bebb bebe bebi beca beci beda bede bedi beeb beed beeg beer bega begg begi beia beic beir bera berc berd bere berg beri berr bgca bgia biad biar biba bibb bibe bibi bica bicc bice bicg bici bida bide bidi bidr bieb bied bier biga bigb bigc bigd bige bigg bira birb bird bire birg biri birr brab brac brad brae brag brai brca brcb brce brda brea breb brec bred bree breg brei brer bria bric brid brie brig brrr c-cd caaa caab caac caba cabe cabg cabi cac- caca cacc cace caci cacr cada cadc cadd cade cadi cadr caec caei caer caga cage cagg cagi cagr caia caib caic caid cair cara carb carc card care cari carr cbac cbar cbbc cbca cbcc cbce cbcr cbdb cbdc cbdi cbea cbec cbee cber cbga cbgb cbia cbid cbir cbrd cbre ccaa ccab ccac ccad ccag ccai ccar ccba ccbc ccca cccb cccc ccci ccdc ccdi ccdr cced ccee ccga ccgc ccic ccid ccii ccir ccra ccrc ccre ccrg ccri cd-e cd-r cdaa cdac cdad cdai cdba cdda cddb cddr cdec cder cdic cdii cdre ceac cead cear ceba cec- ceca cece ceci ceda cedd cede cedi ceeb ceec cege cer- cera cerc cerd cere ceri cgac cgcc cgcg cged cger ciaa ciar ciba cibc cibe cibi cica cicc cici cicr cida cidc cide cidg cidi cidr ciee cier ciga cigi ciia ciid ciii cira cirb circ cire ciri cirr crab crac crag crai crar crbc crca crcc crce crcr crda crdc cre- crea creb crec cred cree creg crei cria crib cric crie crig daab daad daae daag daar daba dabb daca dace daci dada dade dadi daeb daer daga dage dagg dagi dagr daia daid daie daig dair dara darb darc dard dare darg dari darr dbag dbar dbcc dcbc dcca dccb dccc dcci dcdb dcia dcii dcra dddd ddie ddrc ddre deac dead deae dear deba debe debi dec- deca decc decd dece deci deda dedd dede dedi deeb deed deeg deer dega dege degi deid deie deir der- dera derb derc dere derg deri derr dgac dgca dgeg dgge dgia dia- diab diac diad diag diar diba dibb dibe dica dice dici dida dide didi diea dieb died dier diga dige digg digi diii dira dird dire dirr draa drab drac drad drag drar drba drbc drca drda drea dred dree dreg drei drge drib dric drie drra eaba eaca eacc eada eadb eadd eadi eaec eaga eage eara earb eard eare ebac ebba ebbc ebbr ebcc ebed eber ebic ebid ecaa ecac ecad ecai ecar ecbc ecbe ecca eccb eccc ecce ecci ecdc eced ecib ecig ecra ecrc ecri ecrr edac edad edag edar edca edda eddc edde eddi ede- edea edei eder edge edia edie edra eeca eede eeea eeee eega eera eerc eerg egaa egad egae egar egba egbe egcc egcg egcr egea egec egee eger eggb egge eggi egir egra egre egri eica eid- eide eidi eidr eiec eied eiei eier eige eigg eira eird eire erad erba erbb erbe erca ercc erce erda erde erdi ereb erec ered erei erer erg- erga ergg ergi eria eric erie erra errc erre gaar gaba gabb gabe gabi gabr gace gada gadd gade gadi gaea gaec gaed gaer gaga gage gagg gagi gaia gaid gaie gaig gair gara garb gard gare garg gari garr gbag gbde gc-c gcaa gcbc gccc gcda gcic gcii gcrg gdca gdci gddb gdrc geab gead geai gear geba gebe gebi geca gece geda gedd gede gedi geed geer gege gegg geia geic geie geig geir gera gerb gerd gere geri gggg giaa giac giad giai giba gibb gibe gica gicr gida gidc gidd gide gidi gied gier giga gige gigg gigi gira gird gire girg giri girr grab grac grad grae grai grbr grcc grce grdc grea greb grec gree greg gria grib gric grid grie grig grrr i-be iaaa iaac iaai iaba iaca iacc iacr iadb iadc iaea iaec iaia iara iarc iare ibac ibad ibar ibca ibea ibec ibed ibeg ibga ibge