c-cd cccc cccf ccdc ccdf ccdh ccdr cced ccee ccfc ccfd ccff cche cchr ccrc ccre ccrf cd-e cd-r cddr cdec cdef cder cdfe cdre cec- cece cedd cede ceec cef- cefc cer- cerc cerd cere cerf cfcf cffr cfre chce chch chec ched chee chef cheh cher chfc chfr chrc chrd chrf chrr crcc crce crcr crdc cre- crec cred cree creh crfc dccc dcfc dche dddd ddrc ddre dec- decc decd dece dedd dede deed deef deer defe deff der- derc dere derf derr dfcc dfer dfrf dhec dhed dhee dher dhfc dred dree dref dreh drfc eccc ecce ecdc ecdf eced ecef ecfc ecfr eche ecrc ecrf ecrr eddc edde ede- edeh eder eede eeee eefe eerc ehcc ehdd eheh eher ehre ercc erce erch erde erdf erec ered erer erfc erhc errc erre fccf fcch fece fech fede feed feer fefc fefe feff fehd fehr ferc ferd fere ferr ffcc ffee ffff ffrr frcc fred free frfc hccc hcch hcdr hcfc hcrd hdfc hech hedd hede heed heef heer hefd hefe hehe herc herd here herr hfce hhhh hrdc hree hrfc hrrc rccc rcdc rcde rcfc rcrd rder recc recd rece rech recr redc redd rede redh redr reed reef refd refe reff refr rehe rerd rere rfef rffc rhce rhee rred rrfc rrrr