c-cd cccc ccdc ccdr cced ccee ccrc ccre cd-e cd-r cddr cdec cder cdre cec- cece cedd cede cedy ceec cer- cerc cerd cere cery crcc crce crcr crdc cre- crec cred cree cry- cyc- cycc cyre cyy- cyyc dc-y dccc dddd ddrc ddre ddry dec- decc decd dece dedd dede deed deer der- derc dere derr dery deye deyr dred dree drey dry- drye dycd dyce dydd dyde dyed dyer dyey dyr- dyrc dyre dyyr eccc ecce ecdc eced ecrc ecrr ecyd eddc edde eddy ede- eder eede eeee eerc eery ercc erce erde erec ered erer errc erre eryc erye eyec eyed eyer eyey eyre eyry eyyr rccc rcdc rcde rcrd rcyc rder recc recd rece recr recy redc redd rede redr redy reed rerd rere rery reyd reye rred rrrr ryde rydy yccc ycee ydee ydre yedd yede yeed yeer yerd yere yerr yery yeye yeyr yyyy