a-be a-do a-ha aaaa aaab aaac aaad aaae aaah aaar aaba aabb aabc aabd aabh aaca aacb aacc aacd aace aach aaco aacr aada aadc aade aaea aaec aaha aaoe aaoo aara aarc aard aare aaro abaa abab abac abad abae abar abb- abba abbb abbe abbo abbr abca abcb abcc abcd abch abcr abda abdo abec abed abee aber abha abho abhr aboa abob abod aboh aboo abor abra abrc abro acaa acab acac acad acae acar acba acca accc accd acce acch acco acda acdb acdc acde ace- acea acec aced aceh acer acha ache achh acho achr acoa acod acoe acoh acor acr- acra acrc acre acro acrr adaa adab adac adad adae adah adao adar adba adbc adcc adda addc addd adde addo addr adea adeb adee adeh adeo ader adha adhd adho adob adoc adod adoe adoo ador adra adre adro aeac aecb aede aeer aer- aera aerc aerd aero ahab ahac ahad ahah ahar ahed ahha ahoa ahod ahoe ahor ahra ahrc ahre ahrr aoah aoba aoca aoce aodh aora aorb arab arac arad arae arah arar arba arbe arbh arc- arca arce arch arco arda ardc arde ardo area arec ared aree areh areo arh- aroa arob arod aroe aroo aror arr- arra arrc arre arrh arro arrr baaa baad baah baar baba babb babe babo babr bac- baca bacc bace bach baco bada badb badd bade badh bado badr baed baer baha baho bahr baoh bar- bara barb barc bard bare barh baro barr bbad bbbb bbch bbdd bbdo bbeb bbrc bcaa bcar bcbc bcca bccc bcda bcde bcec bcer bchd bche bcor bcra bd-r bdbc bddc bddh bead beah bear beba bebb bebe bebo beca bech beda bede bedo beeb beed beer behr beo- beod beor bera berc berd bere bero berr bhao bhar bhca bhcc bher bhor bhra boab boac boad boar boba bobb bobe bobo boca boce boch boco boda bodb bode bodh bodo boea boec boee boeo boer boha bohd boho bohr boob booc bood booe booh boor bor- bora bord bore borh boro borr brab brac brad brae brah brao brca brcb brce brda brdo brea breb brec bred bree breo brer broa brob broc brod broe broh broo bror brrr c-bo c-cd caaa caab caac caah caba cabe cabo cac- caca cacc cace cach caco cacr cada cadc cadd cade cado cadr caec caer caha cahe caod caor cara carb carc card care caro carr cbac cbar cbbc cbca cbcc cbce cbcr cbdb cbdc cbdo cbea cbec cbee cber cbha cbrd cbre cbrh ccaa ccab ccac ccad ccar ccba ccbc ccca cccb cccc ccdc ccdh ccdr cced ccee ccha cche cchr ccob ccoc ccod ccra ccrc ccre cd-e cd-r cdaa cdac cdad cdba cdda cddb cddr cdec cder cdre ceac cead cear ceba cec- ceca cece ceco ceda cedd cede cedo ceeb ceec ceor cer- cera cerc cerd cere cero chaa chab chac chad chae chah chao char chca chce chch chea cheb chec ched chee cheh cher chha choc chod choh choo chor chra chrb chrc chrd chro chrr coad coba cobb cobe cobh cobo coca coce coch coco coda codd code coed coha coho coob cood cooh cor- cora corb corc cord core coro corr crab crac crar crbc crca crcc crce crcr crda crdc cre- crea creb crec cred cree creh creo crob croc crod croe croh croo cror d-bo daab daad daae daar daba dabb dabo daca dace dada dade dado daeb daer daha dahe dara darb darc dard dare daro darr dbar dbcc dcbc dcca dccb dccc dcdb dche dcra dddd ddoc ddrc ddre deac dead deae dear deba debe dec- deca decc decd dece deco deda dedd dede dedo deeb deed deer deha deor der- dera derb derc dere dero derr dhaa dhad dhao dhar dhec dhed dhee dher dhod dhor doab doae doar doba dobb dobe doca doce doch doco dod- doda dodd dode dodo doea doer doha dohc dohr doob dood door dora dorc dord dore doro dorr draa drab drac drad drar drba drbc drca drda drea dred dree dreh drob drod droh drra eaba eabh eaca eacc each eada eadb eadd eaec eara earb eard eare earh earo ebac ebba ebbc ebbo ebbr ebcc ebed eber eboe eboo ebor ebro ecaa ecac ecad ecao ecar ecbc ecbe ecca eccb eccc ecce ecco ecdc eced echa eche echo eco- ecod ecra ecrc ecrr edac edad edah edar edca edda eddc edde eddo ede- edea edeh eder edoc edod edra eeca eede eeea eeee eeoc eera eerc eero ehaa ehcc ehdd ehea eheh eher ehre eocd eode eora eore erad erba erbb erbe erca ercc erce erch erda erde ereb erec ered erer erhc erob eroc erod eroe eroo erra errc erre erro haab haad haar haba habe habo hace haco hada hade hadh haec haed haha haho haor hara harc hard hare harh haro harr hbar hbcd hboc hcbc hcca hccb hccc hcch hcdr hcrd hdca hdda hdoc hdod hdra head heah hear hebb hebe hebo hebr heca hech heda hedd hede hedo heeb heed heer hehe heho heor hera herb herc herd here hero herr hhaa hhhh hoac hoad hoar hoba hobe hobo hoca hoce hoch hocr hoda hode hodh hodr hoed hoer hoha hohe hoho hood hooe hoor hora horc hord hore horo horr hrac hrad hrdc hree hrob hrod hrrc o-eo oade oaer oahe oara oare obad obba obbo obea obec obed ober oboe obor obra obre obrh obro ocab ocac ocad ocbc occa occc oce oced ocee ocha oche ocra ocre ocro ocrr odac odah odbo odda oddd odea oded odeo oder odoh odoo odor odra oec- oeca oecc oedo oeec oera oere ohad ohba ohbe ohcc ohed ohee oher ohho ohob ohoh ohra ohre ooaa ooba oobe oocr ooda ooer ooha ooho oooh oooo oora oord oore orab orac orad orae orah orao orar orba orbb orbe orbo orca orce orch orco orda orde ordo ore- orea oreb orec ored oreh oreo