c-cd cccc ccdc ccdr cced ccee ccoc ccod ccrc ccre ccrt cctc cctt cd-e cd-r cddr cdec cder cdex cdot cdre cec- cece ceco cect cedd cede cedo cedt ceec ceor cer- cerc cerd cere cero cert cet- cete ceto cexe coce coco coct codd code coed coex cood coot cor- corc cord core coro corr cort cotc cote coto cott coxe crcc crce crcr crdc cre- crec cred cree creo cret crex croc crod croe croo cror crot crrt crtc ctec ctor ctot ctrc cxro cxxx dccc dcct dctc dcxx dddd ddoc ddot ddrc ddre dec- decc decd dece deco dect dedd dede dedo deed deer deet deor der- derc dere dero derr dete deto detr dex- dexe dext do-x doce doco doct dod- dodd dode dodo doer dood door doot dorc dord dore doro dorr dort dotd dote doto dott dred dree dret drod drot dtcc dted dtor dtot dtox dttx dtxt dxcc dxco dxdc dxdr dxec dxed dxoc dxrd dxre dxrr dxrt dxrx dxxr dxxx eccc ecce ecco ecct ecdc eced eco- ecod ecot ecrc ecrr ect- ectc ecto eddc edde eddo ede- eder edex edoc edod eede eeee eeoc eerc eero eetc eete eext eocd eode eore eotc eotd eoto er-x ercc erce erde erec ered erer eret eroc erod eroe eroo errc erre erro etcc etco etec etee eter etoe etox etre etro ette etto exco exec exed exer exo- exod exor exrx exte extr o-eo occc occt oce oced ocee ocet ocre ocro ocrr oct- octe octo oddd oded odeo oder odet odex odoo odor odot oec- oecc oedo oeec oere oocr ooer oooo oord oore oort orce orco orde ordo ore- orec ored oreo orer orex oro- oroe oror orot orro ortc orte orto otcd oted otee oter oto- otoe otoo otor otre otro otte otto oxer oxo- oxox oxxo rccc rcdc rcde rcet rcrd rctc rder rdoc recc recd rece recr rect redc redd rede redo redr redx reed reet reod reot rerd rere rero rert retd rete reto retr rett rexx rocc roce roco rodd rode rodo roed roer roet rood roor root roox rorc rore roro rort rotc rote roto rotr rott roxo rred rrrr rtcc rtce rtdt rtee rtex tccc tcdd tctc tdor teco tecr tect tedd tede tedx teec teed teer teet teor ter- terc tere tero terr tete teto tetr tett tetx text toce toco todd tode todo todt toed toee toer toet tood toor toot torc tord tore toro torr tort torx totc totd tote toto totr tott tox- toxo toxt trcc tre- trec tred tree treo tret trex troc trod troe troo trot trox trtc trte trtr tteo tter ttoe tttt txtr x-ed xdcc xeer xer- xero xert xexe xoco xoro xote xoxo xrcd xrod xtro xxxo xxxx