a-be a-ii aaaa aaab aaac aaad aaae aaai aaar aaba aabb aabc aabd aabi aabt aaca aacb aacc aacd aace aaci aacr aact aada aadc aade aadi aadt aaea aaec aaib aaic aaii aara aarc aard aare aari aart aata aatc aatt abaa abab abac abad abae abai abar abat abb- abba abbb abbe abbi abbr abbt abca abcb abcc abcd abci abcr abct abda abdi abec abed abee aber abet abia abib abic abid abie abir abit abra abrc abri abta ac-t acaa acab acac acad acae acai acar acat acba acca accc accd acce acci acct acda acdb acdc acde acdi acdt ace- acea acec aced acer acet aci- acia acic acid acie acir acr- acra acrc acre acri acrr acta actc acte acti actt adaa adab adac adad adae adai adar adat adba adbc adbi adcc adci adda addc addd adde addi addr adea adeb adee ader adet adia adib adic adie adir adit adra adre adta aeac aebi aecb aeci aect aede aedt aeer aeit aer- aera aerc aerd aeri aeta aetc aetr aett aiai aiba aica aicc aicd aice aicr aida aidb aidc aide aidi aidr aidt aiea aiee aiet aiia aiib aiic aiid aiir aira aird aire airi airt aita aite aiti aitr aitt arab arac arad arae arai arar arat arba arbe arbi arc- arca arce arci arct arda ardc arde ardi area arec ared aree arei aret aria arib arid arie arii arit arr- arra arrc arre arri arrr arrt arta artc arte arti artr at-t ataa atab atac atad atae atai atar atat atca atcc atcr atdi atdt atea atec ated atee atei ater atia atic atid atie atit atra atrc atre atri atta atte atti attr ba-i baaa baad baar baat baba babb babe babi babr bac- baca bacc bace baci bact bada badb badd bade badi badr baed baer baia baib baic baid baie bair bait bar- bara barb barc bard bare bari barr bart bata batc bate bati batt bbad bbbb bbci bbdd bbeb bbet bbrc bcaa bcar bcat bcbc bcca bccc bcci bcda bcde bcec bcer bcet bcia bcie bcit bcra bctc bd-r bdbc bddc bdii bead bear beat beba bebb bebe bebi beca beci beda bede bedi beeb beed beer beet beia beic beir beit bera berc berd bere beri berr bert beta betc bete beti bett biad biar biat biba bibb bibe bibi bica bicc bice bici bida bide bidi bidr bieb bied bier biet bira birb bird bire biri birr birt bita bitc bitd bite bitt brab brac brad brae brai brat brca brcb brce brda brdt brea breb brec bred bree brei brer bret bria bric brid brie brit brrr brtc btaa btcc btdt btec btie btrc btrt bttb c-cd caaa caab caac caat caba cabe cabi cac- caca cacc cace caci cacr cada cadc cadd cade cadi cadr caec caei caer caia caib caic caid cair cait cara carb carc card care cari carr cart cat- cata catb catc catd cate cati catt cbac cbar cbat cbbc cbca cbcc cbce cbcr cbct cbdb cbdc cbdi cbea cbec cbee cber cbet cbia cbid cbir cbit cbrd cbre cbrt cbta cbtc ccaa ccab ccac ccad ccai ccar ccat ccba ccbc ccca cccb cccc ccci ccdc ccdi ccdr cced ccee ccic ccid ccii ccir ccra ccrc ccre ccri ccrt cctb cctc cctt cd-e cd-r cdaa cdac cdad cdai cdba cdda cddb cddr cdec cder cdic cdii cdre ceac cead cear ceat ceba cec- ceca cece ceci cect ceda cedd cede cedi cedt ceeb ceec cer- cera cerc cerd cere ceri cert cet- ceta cete ceti ciaa ciar ciat ciba cibc cibe cibi cica cicc cici cicr cict cida cidc cide cidi cidr cidt ciee cier ciia ciid ciii ciit cira cirb circ cire ciri cirr cirt cita citb cite citi citt crab crac crai crar crat crbc crca crcc crce crcr crda crdc cre- crea creb crec cred cree crei cret cria crib cric crie crit crrt crtc ctab ctae ctba ctbi ctca ctec ctia ctic ctrc ctta daab daad daae daar daba dabb dabt daca dace daci dact dada dade dadi daeb daer daia daid daie dair dait dara darb darc dard dare dari darr dart data date dati datr datt dbar dbcc dbit dbtt dcbc dcca dccb dccc dcci dcct dcdb dcia dcii dcra dctc dddd ddie ddrc ddre deac dead deae dear deba debe debi debt dec- deca decc decd dece deci dect deda dedd dede dedi deeb deed deer deet deid deie deir deit der- dera derb derc dere deri derr deta dete detr dia- diab diac diad diar diat diba dibb dibe dica dice dici dict dida dide didi diea dieb died dier diet diii dira dird dire dirr dirt dita dite diti ditt draa drab drac drad drar drat drba drbc drca drda drea dred dree drei dret drib dric drie drit drra dtaa dtac dtcc dted eaba eaca eacc eada eadb eadd eadi eaec eara earb eard eare eart eata eate eati ebac ebba ebbc ebbr ebcc ebed eber ebic ebid ebit ecaa ecac ecad ecai ecar ecat ecbc ecbe ecca eccb eccc ecce ecci ecct ecdc eced ecib ecit ecra ecrc ecri ecrr ect- ecta ectc edac edad edar edca edda eddc edde eddi ede- edea edei eder edia edie edit edra edta eeca eede eeea eeee eera eerc eeta eetc eete eica eid- eide eidi eidr eiec eied eiei eier eira eird eire eita eitb eitc eiti eitr erad erat erba erbb erbe erca ercc erce erda erde erdi ereb erec ered erei erer eret eria eric erie erit erra errc erre erta etai etat etbc etbr etcc etec etee eter etic etra etre etta ette etti i-be iaaa iaac iaai iaat iaba iaca iacc iacr iact iadb iadc iadt iaea iaec iaia iara iarc iare iart iata iatc iate iati ibac ibad ibar ibat ibca ibea ibec ibed ibet ibia ibid ibie ibra ibrc ibrd ibri ibtb ibtc icaa icab icac icad icai icar icat