c-cd cccc cccu ccdc ccdr ccrc ccuc cd-r cddr ckck ckdu ckrc ckrd crcc crcr crdc crkc crud cruk cucc cuck cuk- curd curr dccc dccu dcrk dddd ddrc dkdc druk druu duck dudd dudu duku durk duru duur kccc kccd kcck kccr kccu kcdc kcdd kcdr kcdu kckc kckk kckr kcrc kcrr kcru kcuk kdcc kdcd kdcr kddc kddd kddk kddr kdkd kdkk kdkr kduc kdur kkcd kkck kkcr kkdc kkdd kkkk kkrc kkrk kkrr kkuu krcc krcd krcu krdc krdd krdr krdu krkc krkd krkk krkr krku krrc krrk krrr kruc kruk krur kucc kucd kucr kudd kudu kukk kuku kurd kurk kurr kuru kuuk kuur kuuu rccc rcdc rcrd rrrr ruck rudd rukk ruku rurc rurd ruru ruud ucdc ucdd ucrc uduk ukcc ukrc ukur urdu uruk urur uuuu