a-be a-ii aaaa aaab aaac aaad aaae aaai aaar aaba aabb aabc aabd aabi aaca aacb aacc aacd aace aaci aacr aacu aada aadc aade aadi aadu aaea aaec aaib aaic aaii aara aarc aard aare aari aaru abaa abab abac abad abae abai abar abau abb- abba abbb abbe abbi abbr abca abcb abcc abcd abci abcr abda abdi abdu abec abed abee aber abia abib abic abid abie abir abiu abra abrc abri abua abud abue acaa acab acac acad acae acai acar acba acca accc accd acce acci accu acda acdb acdc acde acdi ace- acea acec aced acer aci- acia acic acid acie acir acr- acra acrc acre acri acrr acu- acue acur adaa adab adac adad adae adai adar adba adbc adbi adcc adci adda addc addd adde addi addr addu adea adeb adee ader adia adib adic adie adir adra adre adua adub adue adur aeac aebi aecb aeci aede aeer aer- aera aerc aerd aeri aiai aiba aica aicc aicd aice aicr aida aidb aidc aide aidi aidr aidu aiea aiee aiia aiib aiic aiid aiir aira aird aire airi aiud aiui arab arac arad arae arai arar arau arba arbe arbi arc- arca arce arci arda ardc arde ardi ardu area arec ared aree arei areu aria arib arid arie arii arr- arra arrc arre arri arrr arru arua arub arud arue arui auaa aube auca auce auci audc aude audi auer aur- aura aurd aure auri ba-i baaa baad baar baba babb babe babi babr babu bac- baca bacc bace baci bada badb badd bade badi badr badu baed baer baia baib baic baid baie bair bar- bara barb barc bard bare bari barr baru bau- baud baur bbad bbau bbbb bbci bbdd bbeb bbrc bcaa bcar bcbc bcca bccc bcci bcda bcde bcec bcer bcia bcie bcra bcru bcuc bd-r bdbc bddc bdii bead bear beau beba bebb bebe bebi beca beci becu beda bede bedi bedu beeb beed beer beia beic beir bera berc berd bere beri berr beru beur biad biar biba bibb bibe bibi bica bicc bice bici bida bide bidi bidr bidu bieb bied bier bieu bira birb bird bire biri birr biru brab brac brad brae brai brau brca brcb brce brda brea breb brec bred bree brei brer bria bric brid brie brrr bruc brud brue buad buar buba bubb bube bubi bubu buca bucc buce buci bucu buda budb budd bude budi budu buea buer bueu buic buid buie buir buiu bur- bura burb burd bure buri burr buru c-cd caaa caab caac caba cabe cabi cabu cac- caca cacc cace caci cacr cada cadc cadd cade cadi cadr cadu caec caei caer caeu caia caib caic caid cair caiu cara carb carc card care cari carr cauc cbac cbar cbbc cbca cbcc cbce cbcr cbcu cbdb cbdc cbdi cbea cbec cbee cber cbia cbid cbir cbrd cbre ccaa ccab ccac ccad ccai ccar ccba ccbc ccca cccb cccc ccci cccu ccdc ccdi ccdr cced ccee ccic ccid ccii ccir ccra ccrc ccre ccri ccuc cd-e cd-r cdaa cdac cdad cdai cdba cdda cddb cddr cdec cder cdic cdii cdre ceac cead cear ceba cebu cec- ceca cece ceci ceda cedd cede cedi cedu ceeb ceec cer- cera cerc cerd cere ceri ceui ciaa ciar ciau ciba cibc cibe cibi cica cicc cici cicr cicu cida cidc cide cidi cidr ciee cier ciia ciid ciii cira cirb circ cire ciri cirr ciuc crab crac crai crar crau crbc crbu crca crcc crce crcr crda crdc cre- crea creb crec cred cree crei creu cria crib cric crie criu crub crud crue cuau cub- cuba cubb cube cubi cuca cucc cuce cuci cuda cude cudi cued cuer cui- cuir cura curb curd cure curi curr daab daad daae daar daau daba dabb dabu daca dace daci dada dade dadi dadu daeb daer daeu daia daid daie dair dara darb darc dard dare dari darr daru daub daud daue daur dbar dbcc dcbc dcca dccb dccc dcci dccu dcdb dcia dcii dcra dddd ddie ddrc ddre ddub deac dead deae dear deau deba debe debi debu dec- deca decc decd dece deci deda dedd dede dedi dedu deeb deed deer deid deie deir der- dera derb derc dere deri derr deua deue deur dia- diab diac diad diar diba dibb dibe dica dice dici dida dide didi didu diea dieb died dier dieu diii dira dird dire dirr draa drab drac drad drar drau drba drbc drca drda drea dred dree drei drib dric drie drra drua drub drue drui druu duaa duab duad duar dub- duba dubb dubc dube dubu duca duce duda dudd dude dudu duer duid duir dura dure duri duru duur eaba eaca eacc eada eadb eadd eadi eaec eaiu eara earb eard eare ebac ebba ebbc ebbr ebcc ebed eber ebic ebid ebru ebur ecaa ecac ecad ecai ecar ecbc ecbe ecca eccb eccc ecce ecci ecdc eced ecib ecra ecrc ecri ecrr ecru ecua edac edad edar edca edda eddc edde eddi ede- edea edei eder edia edie edra edru educ edur eeca eede eedu eeea eeee eera eerc eica eid- eide eidi eidr eidu eiec eied eiei eier eira eird eire erad erau erba erbb erbe erca ercc erce erda erde erdi ereb erec ered erei erer eria eric erie eriu erra errc erre erua erub eruc erur euba eubc eubi eucd eude euer eur- eura eurc eure i-be iaaa iaac iaai iaba iaca iacc iacr iacu iadb iadc iaea iaec iaia iara iarc iare iaru ibac ibad ibar ibca ibea ibec ibed ibia ibid ibie ibra ibrc ibrd ibri icaa icab icac icad icai icar icbc icbd icca iccb iccc icci iccr iccu icdc icdd icde icea icec iced icee icer icra icrc icre icrr icru icub icue idad idae idar idbe idca idce idcr idda idea idec ided idee ider idia idic idid idie idir idra idrc idre idub ieac iecc iedr ieie iera iere ieri