c-cd cccc cccu ccdc ccdh ccdn ccdr cchr ccnc ccnr ccnu ccrc ccuc cd-r cddr cdnc chch chnc chnr chrc chrd chrn chrr chud chun chur cndd cnrc cnrr crcc crcr crdc crud crun cucc cucn cund curd curn curr dccc dccu dddd ddrc dhrn dhun dhur dnrc drnh druu duch dudd dudu duhr duhu dunc dunn durn duru duur hccc hcch hcdr hcrd hhhh hndd hrdc hrdn hrrc hrud hrun huch hucu hudd hudu huhn huhu hunc hund hunh hurd hurn hurr huru nccc nccn nccr nccu ncdc ncdn ncdr ncdu nchc nchd ncnc ncnd ncrc ndcc ndrc nhcc nhnn nhrc nnnn nrdc nrrc nrrd nuch nucu nudc nudd nunc nunn nurc nurd nurn nurr nuru rccc rcdc rcnr rcrd rhun rndc rrrr rrun ruch rudd ruhh ruhn ruhr runc rund runn rurc rurd ruru ruud ruun ucdc ucdd ucrc udun uh-d uhuh uncc unch urch urdu urrh urun urur uuuu