c-cd cccc ccdc ccdr cced ccee ccrc ccre cd-e cd-r cddr cdec cder cdre cec- cece cedd cede ceec ceke cer- cerc cerd cere ckck cker ckrc ckrd crcc crce crcr crdc cre- crec cred cree crkc dccc dcrk dddd ddrc ddre dec- decc decd dece deck dedd dede deed deek deer dek- deke der- derc dere derk derr dkdc dred dree drek eccc ecce ecdc eced ecrc ecrr eddc edde ede- eder eede eeee eeke eerc eked ekek eker ercc erce erde erec ered erer erke errc erre kccc kccd kcck kccr kcdc kcdd kcdr kcec kced kcee kckc kckk kckr kcrc kcrr kdcc kdcd kdce kdcr kddc kddd kddk kddr kdec kdkd kdkk kdkr keck kecr kedc kedd kede kedr keed keek keer kekc keke ker- kerc kere kerk kerr kkcd kkck kkcr kkdc kkdd kked kkkk kkrc kkre kkrk kkrr krcc krcd krce krdc krdd krde krdr krec kred kree krek krkc krkd krke krkk krkr krrc krre krrk krrr rccc rcdc rcde rcrd rder recc recd rece reck recr redc redd rede redr reed reek reke rerd rere rred rrrr