c-cd cccc cccv ccdc ccdr cced ccee ccrc ccre cd-e cd-r cddr cdec cder cdre cdvd cec- cece cedd cede ceec cer- cerc cerd cere crcc crce crcr crdc cre- crec cred cree cvcc cver cvrd cvrr dccc dccv dcvd dddd ddrc ddre dec- decc decd dece dedd dede deed deer deev der- derc dere derr derv deve dred dree drev dvdr eccc ecce ecdc eced ecrc ecrr ecrv eddc edde ede- eder edve eede eeee eerc ercc erce erde erec ered erer erev errc erre erve ever evre rccc rcdc rcde rcrd rcvr rder rdev recc recd rece recr redc redd rede redr reed reev rerd rere revd reve rred rrrr rv-c rved rver vdcc vdec vder vdre vecc vedc vede veer ver- verd vere veve vred vver vvvv