a-be a-ha aaaa aaab aaac aaad aaae aaah aaar aaba aabb aabc aabd aabh aaca aacb aacc aacd aace aach aacr aada aadc aade aaea aaec aage aagh aaha aara aarc aard aare abaa abab abac abad abae abag abar abb- abba abbb abbe abbr abca abcb abcc abcd abch abcr abda abec abed abee aber abgd abha abhr abra abrc acaa acab acac acad acae acag acar acba acca accc accd acce acch acda acdb acdc acde ace- acea acec aced aceh acer acga acgr acha ache achh achr acr- acra acrc acre acrr adaa adab adac adad adae adag adah adar adba adbc adcc adda addc addd adde addr adea adeb adee adeh ader adha adhd adra adre aeac aecb aede aeer aega aer- aera aerc aerd agac agad agag agar agba agca agcc agce agda agde agea aged agee ager agga agge agha aghe agra agre ahab ahac ahad ahah ahar ahed ahha ahra ahrc ahre ahrr arab arac arad arae arag arah arar arba arbe arbh arc- arca arce arch arda ardc arde area arec ared aree areg areh arga argb arge argh arh- arr- arra arrc arre arrg arrh arrr baaa baad baah baar baba babb babe babr bac- baca bacc bace bach bada badb badd bade badh badr baed baer baga bage bagg bagh baha bahr bar- bara barb barc bard bare barg barh barr bbad bbbb bbch bbdd bbeb bbga bbrc bbrg bcaa bcar bcbc bcbg bcca bccc bcda bcde bcec bcer bchd bche bcra bd-r bdbc bddc bddh bead beag beah bear beba bebb bebe beca bech beda bede beeb beed beeg beer bega begg behr bera berc berd bere berg berr bgca bhag bhar bhca bhcc bher bhra brab brac brad brae brag brah brca brcb brce brda brea breb brec bred bree breg brer brrr c-cd caaa caab caac caah caba cabe cabg cac- caca cacc cace cach cacr cada cadc cadd cade cadr caec caer caga cage cagg cagr caha cahe cara carb carc card care carr cbac cbar cbbc cbca cbcc cbce cbcr cbdb cbdc cbea cbec cbee cber cbga cbgb cbha cbrd cbre cbrh ccaa ccab ccac ccad ccag ccar ccba ccbc ccca cccb cccc ccdc ccdh ccdr cced ccee ccga ccgc ccha cche cchr ccra ccrc ccre ccrg cd-e cd-r cdaa cdac cdad cdba cdda cddb cddr cdec cder cdre ceac cead cear ceba cec- ceca cece ceda cedd cede ceeb ceec cege cer- cera cerc cerd cere cgac cgcc cgcg cged cger chaa chab chac chad chae chag chah char chca chce chch chea cheb chec ched chee cheh cher chgb chgd chge chha chra chrb chrc chrd chrr crab crac crag crar crbc crca crcc crce crcr crda crdc cre- crea creb crec cred cree creg creh daab daad daae daag daar daba dabb daca dace dada dade daeb daer daga dage dagg dagh dagr daha dahe dara darb darc dard dare darg darr dbag dbar dbcc dcbc dcca dccb dccc dcdb dche dcra dddd ddrc ddre deac dead deae dear deba debe dec- deca decc decd dece deda dedd dede deeb deed deeg deer dega dege degh deha der- dera derb derc dere derg derr dgac dgca dgeg dgge dghe dhaa dhad dhag dhar dhec dhed dhee dher draa drab drac drad drag drar drba drbc drca drda drea dred dree dreg dreh drge drra eaba eabh eaca eacc each eada eadb eadd eaec eaga eage eara earb eard eare earh ebac ebba ebbc ebbr ebcc ebed eber ecaa ecac ecad ecar ecbc ecbe ecca eccb eccc ecce ecdc eced echa eche ecra ecrc ecrr edac edad edag edah edar edca edda eddc edde ede- edea edeh eder edge edra eeca eede eeea eeee eega eera eerc eerg egaa egad egae egar egba egbe egcc egcg egcr egea egec egee eger eggb egge eggh eghd eghe eghh egra egre ehaa ehcc ehdd ehea eheh eher ehre erad erba erbb erbe erca ercc erce erch erda erde ereb erec ered erer erg- erga ergg ergh erhc erra errc erre gaar gaba gabb gabe gabr gace gach gada gadd gade gaea gaec gaed gaer gaga gage gagg gaha gahe gara garb gard gare garg garr gbag gbde gc-c gcaa gcbc gccc gcda gcrg gdca gddb gdrc geab gead gear geba gebe geca gece geda gedd gede geed geer gege gegg geha gera gerb gerd gere gggg gghg ghar ghea ghee gheg grab grac grad grae grbr grcc grce grdc grea greb grec gree greg grrr haab haad haag haar haba habe hace hada hade hadh haec haed hag- haga hage hagg hagh haha hara harc hard hare harh harr hbag hbar hbcd hcbc hcca hccb hccc hcch hcdr hcgh hcrd hdca hdda hdra head heah hear hebb hebe hebr heca hech heda hedd hede hedg heeb heed heeg heer hega hege hegg hegh hehe hera herb herc herd here herg herr hgah hgar hggc hhaa hhgg hhhh hrac hrad hrdc hree hrrc raab raad raag raba rabb rabe rac- raca racc race rach rada radc radd rade radh radr raec raed raeg raer raga rage ragg ragh raha rahe rahr rara rarb rare rbbb rbbr rbgh rcac rcbc rccb rccc rcdc rcde rcga rcgc rchb rcrd rcrg rdac rder rea- reac read reae rear reba rebb rebe reca recc recd rece rech recr reda redc redd rede redh redr reeb reed rega regd rege regr reha rehb rehe rera rerd rere rerg rgba rgbe rhae rhag rhbg rhce rhcg rhea rheb rhee rrad rrah rred rrrr