a-do a-ha aaaa aaac aaad aaaf aaah aaar aaca aacc aacd aacf aach aaco aacr aada aadc aafa aafc aafd aaff aaha aaoo aara aarc aard aaro acaa acac acad acar acca accc accd accf acch acco acda acdc acdf acfc acfd acha achh acho achr acoa acod acoh acor acr- acra acrc acro acrr adaa adac adad adah adao adar adcc adda addc addd addo addr adfa adfc adha adhd adho adoc adod adoo ador adra adro afaa afad afao afar afca afcc afch afdc affa affc affo afoa afoo afor afr- afra afrc afro ahac ahad ahah ahar ahfa ahha ahoa ahod ahor ahra ahrc ahrr aoah aoca aodh aora arac arad araf arah arar arc- arca arch arco arda ardc ardf ardo arfa arfc arff arh- aroa arod aroo aror arr- arra arrc arrh arro arrr c-cd caaa caac caaf caah cac- caca cacc cach caco cacr cada cadc cadd cado cadr cafa cafc caff caha caod caor cara carc card carf caro carr ccaa ccac ccad ccaf ccar ccca cccc cccf ccdc ccdf ccdh ccdr ccfa ccfc ccfd ccff ccha cchr ccoc ccod ccra ccrc ccrf cd-r cdaa cdac cdad cdda cddr cdfa cfaa cfac cfao cfar cfca cfcf cfco cfda cffr cfoa cfor cfra chaa chac chad chaf chah chao char chca chch chfa chfc chfr chha choc chod choh choo chor chra chrc chrd chrf chro chrr coad coca coch coco coda codd cofc coff coha coho cood coof cooh cor- cora corc cord corf coro corr crac craf crar crca crcc crcr crda crdc crfc croc crod croh croo cror daad daar daca dada dado dafa dafc daff dafo daha dara darc dard darf daro darr dcca dccc dcfc dcra dddd ddoc ddrc dfaf dfcc dfco dffa dfrf dhaa dhad dhao dhar dhfc dhod dhor doar doca doch doco dod- doda dodd dodo doff doha dohc dohr dood doof door dora dorc dord dorf doro dorr draa drac drad draf drar drca drda drfc drod drof droh drra faaa faac faad faah faca facc fach fada fadd fado fafa fafc faff fafo faha fahd fahr fara farc fard faro farr fcar fcca fccf fcch fcda fcra fdca fdoa fdoc ffar ffcc ffff ffrr foad foaf foar foca foch foco foda fofo fohr food foof for- fora ford foro forr frac frad frcc frfc froh haad haaf haar haco hada hadf hadh hafd haff haha haho haor hara harc hard harf harh haro harr hcca hccc hcch hcdr hcfa hcfc hcrd hdca hdda hdfc hdoc hdod hdra hhaa hhhh hhof hoac hoad hoar hoca hoch hocr hoda hodh hodr hoff hoha hoho hood hoof hoor hora horc hord horo horr hrac hrad hrdc hrfc hrod hrrc oafc oafo oara ocac ocad occa occc ocfa ocha ocra ocro ocrr odac odah odda oddd odoh odoo odor odra ofah ofcr ofdr off- offa offc offh offo offr ofor ofra ohad ohcc ohho ohoh ohra ooaa oocr ooda ooff ooha ooho oooh oooo oora oord orac orad orah orao orar orca orch orco orda ordo orff oro- orof oror orra orro raad raaf rac- raca racc rach raco rada radc radd radh rado radr rafa rafc raff raha rahr raoc raoh rara rarf raro rcac rcaf rccc rcdc rcfc rcrd rdac rdfa rdoc rffc rhoa rhoc rhod rhoh road roaf roar roca rocc roch roco roda rodd rodo rofc roff rofo roha rohr rood roof roor rora rorc roro rrad rrah rrfc rrrr