c-cd cccc cccu ccdc ccdr cced ccee ccrc ccre ccuc cd-e cd-r cddr cdec cder cdre cec- cece cedd cede cedu ceec cer- cerc cerd cere crcc crce crcr crdc cre- crec cred cree creu crud crue cucc cuce cude cued cuer curd cure curr dccc dccu dddd ddrc ddre dec- decc decd dece dedd dede dedu deed deer der- derc dere derr deue deur dred dree drue druu duce dudd dude dudu duer dure duru duur eccc ecce ecdc eced ecrc ecrr ecru eddc edde ede- eder edru educ edur eede eedu eeee eerc ercc erce erde erec ered erer errc erre eruc erur eucd eude euer eur- eurc eure rccc rcdc rcde rcrd rder recc recd rece recr recu redc redd rede redr redu reed rerd rere reru reue reuu rred rrrr ruce rudd rude rued ruer rurc rurd rure ruru ruud ucdc ucdd ucrc uder urde urdu ure- ured urre urur uuuu