a-ak a-be aaaa aaab aaac aaad aaae aaba aabb aabc aabd aabt aaca aacb aacc aacd aace aack aact aada aadc aade aadt aaea aaec aage aaka aake aata aatc aatk aatt abaa abab abac abad abae abag abak abat abb- abba abbb abbe abbt abca abcb abcc abcd abct abda abec abed abee abet abgd abta ac-t acaa acab acac acad acae acag acat acba acca accc accd acce acct acda acdb acdc acde acdt ace- acea acec aced acek acet acga ackd acke acta actc acte actg actt adaa adab adac adad adae adag adak adat adba adbc adcc adda addc addd adde adea adeb adee adet adta aeac aecb aect aede aedt aega aeka aeta aetc aett agac agad agag agat agba agca agcc agce agct agda agde agea aged agee aget agga agge agta agte akaa akae akca aked akee akeg akka akte at-t ataa atab atac atad atae atak atat atca atcc atck atdt atea atec ated atee atka atkt atta atte baaa baad baak baat baba babb babe bac- baca bacc bace back bact bada badb badd bade baed baek baga bage bagg bagt bak- baka bake bakt bata batc bate batt bbad bbbb bbdd bbeb bbet bbga bcaa bcat bcbc bcbg bcca bccc bcda bcde bcec bcet bctc bdbc bddc bead beag beak beat beba bebb bebe beca beck beda bede beeb beed beeg beek beet bega begg beka beke beta betc bete bett bgca bkgd btaa btcc btdt btec btek bttb c-cd caaa caab caac caat caba cabe cabg cac- caca cacc cace cack cada cadc cadd cade caec caga cage cagg caka cake cat- cata catb catc catd cate catt cbac cbat cbbc cbca cbcc cbce cbct cbdb cbdc cbea cbec cbee cbet cbga cbgb cbka cbkg cbta cbtc ccaa ccab ccac ccad ccag ccat ccba ccbc ccca cccb cccc ccdc cced ccee ccga ccgc ccgt cctb cctc cctt cd-e cdaa cdac cdad cdba cdda cddb cdec ceac cead ceat ceba cec- ceca cece cect ceda cedd cede cedt ceeb ceec cege ceke cet- ceta cete cgac cgcc cgcg cged ckac ckat ckbc ckbe ckck ckga cktb ctab ctae ctag ctba ctca ctec ctge ctta daab daad daae daag daba dabb dabt daca dace dact dada dade daeb daga dage dagg daka dake data date datt dbag dbcc dbtt dcbc dcca dccb dccc dcct dcdb dctc dddd deac dead deae deak deba debe debt dec- deca decc decd dece deck dect deda dedd dede deeb deed deeg deek deet dega dege dek- deka deke deta dete detk dgac dgca dgeg dgge dgka dgkb dgkd dgkg dkba dkdc dtaa dtac dtcc dted dtek eaba eaca eacc eada eadb eadd eaec eaga eage eata eate ebac ebba ebbc ebcc ebed ecaa ecac ecad ecat ecbc ecbe ecca eccb eccc ecce ecct ecdc eced ecka ect- ecta ectc edac edad edag edca edda eddc edde ede- edea edge edta eeca eede eeea eeee eega eeka eeke eeta eetc eete egaa egad egae egat egba egbe egcc egcg egea egec egee eggb egge egta egte egtk eka- ekab ekeb eked ekek eket ekka ekta etag etak etat etbc etcc etec etee etka etta ette gaba gabb gabe gabt gace gack gada gadd gade gadk gaea gaec gaed gaga gage gagg gata gatc gate gatt gbag gbde gc-c gcaa gcat gcbc gccc gcda gcet gctc gdca gddb geab gead geat geba gebe geca gece geck geda gedd gede geed geek geet gege gegg geta getb gete getg getk gett ggbt gggg gtaa gtea gtta kaaa kaab kaag kaak kaat kaba kabb kabc kabd kabe kabg kacb kacc kacd kace kact kad- kada kadd kade kadt kaet kag- kaga kagb kagc kage kagg kagt kaka kakc kake kakk kakt kat- kata katb katc katd kate katg katk katt kbaa kbab kbac kbad kbae kbak kbat kbba kbbb kbbc kbbd kbbe kbbg kbbk kbbt kbca kbcb kbce kbck kbct kbdb kbde kbdg kbeb kbec kbed kbee kbek kbet kbga kbgb kbge kbgg kbgt kbkb kbkg kbkk kbta kbtb kbtc kbte kbtk kbtt kcaa kcab kcac kcad kcat kcba kcbc kcbd kcbk kcca kccb kccc kccd kcck kcct kcda kcdc kcdd kcea kceb kcec kced kcee kceg kcet kcgc kckc kckk kcta kctb kctc kcte kdaa kdab kdac kdad kdae kdag kdak kdat kdbb kdbg kdca kdcc kdcd kdce kddb kddc kddd kddg kddk kdeb kdec kdet kdge kdka kdkb kdkd kdkk kdkt kdta kdtd kea- kead keag keak keat keba kebb kebc kebe kebt keca kecg keck keda kedb kedc kedd kede kedg kedt keed keek keet kega kege kegg kegk keka kekb kekc keke ket- keta ketc ketd kete ketk kett kgab kgac kgak kgba kgbb kgbc kgbt kgcb kgcc kgcd kgce kgdb kgdc kgdd kgeb kgec kged kget kgga kggg kgtk kkaa kkac kkag kkat kkba kkbb kkbd kkbe kkbg kkbt kkcb kkcd kkck kkct kkda kkdc kkdd kkdg kkdt kkea kked kkeg kkgb kkkk kktc kktk ktaa ktae ktag ktak ktat ktba ktbb ktbc ktbg ktbt ktcc ktce ktck ktdb ktdc ktdd ktde ktdk ktea ktec kted ktee kteg ktek ktga ktge ktgg ktkb ktkc ktke ktkk ktkt kttc kttg kttk kttt taa- taag taat taba tabb tabc tabe taca tacc tace tack tact tada tade tadg taec taga tage tagg taka take takk takt tata tatb tate tatt tbca tbcb tbcc tbcd tbce tbta tcad tcca tccc tcdd tcga tctc tdac tddb teac tead teak teat teba teca teck tect teda tedd tede tedk teec teed teek teet tega tegg tegt teka teke teta tete tett tgcc tgtc tkac tkkg ttab ttbb ttkg tttt