a-do aaaa aaac aaad aaaf aaar aaca aacc aacd aacf aaco aacr aada aadc aafa aafc aafd aaff aaoo aara aarc aard aaro acaa acac acad acar acca accc accd accf acco acda acdc acdf acfc acfd acoa acod acor acr- acra acrc acro acrr adaa adac adad adao adar adcc adda addc addd addo addr adfa adfc adoc adod adoo ador adra adro afaa afad afao afar afca afcc afdc affa affc affo afoa afoo afor afr- afra afrc afro aoca aora arac arad araf arar arc- arca arco arda ardc ardf ardo arfa arfc arff aroa arod aroo aror arr- arra arrc arro arrr c-cd caaa caac caaf cac- caca cacc caco cacr cada cadc cadd cado cadr cafa cafc caff caod caor cara carc card carf caro carr ccaa ccac ccad ccaf ccar ccca cccc cccf ccdc ccdf ccdr ccfa ccfc ccfd ccff 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 coad coca coco coda codd cofc coff cood coof cor- cora corc cord corf coro corr crac craf crar crca crcc crcr crda crdc crfc croc crod croo cror daad daar daca dada dado dafa dafc daff dafo dara darc dard darf daro darr dcca dccc dcfc dcra dddd ddoc ddrc dfaf dfcc dfco dffa dfrf doar doca doco dod- doda dodd dodo doff dood doof door dora dorc dord dorf doro dorr draa drac drad draf drar drca drda drfc drod drof drra faaa faac faad faca facc fada fadd fado fafa fafc faff fafo fara farc fard faro farr fcar fcca fccf fcda fcra fdca fdoa fdoc ffar ffcc ffff ffrr foad foaf foar foca foco foda fofo food foof for- fora ford foro forr frac frad frcc frfc oafc oafo oara ocac ocad occa occc ocfa ocra ocro ocrr odac odda oddd odoo odor odra ofcr ofdr off- offa offc offo offr ofor ofra ooaa oocr ooda ooff oooo oora oord orac orad orao orar orca orco orda ordo orff oro- orof oror orra orro raad raaf rac- raca racc raco rada radc radd rado radr rafa rafc raff raoc rara rarf raro rcac rcaf rccc rcdc rcfc rcrd rdac rdfa rdoc rffc road roaf roar roca rocc roco roda rodd rodo rofc roff rofo rood roof roor rora rorc roro rrad rrfc rrrr