cccc cccu ccnc ccnr ccnu ccrc ccuc ckck cknc ckrc cnrc cnrr crcc crcr crkc cruk crun cucc cuck cucn cuk- curn curr kccc kcck kccr kccu kckc kckk kckn kckr kcnr kcrc kcrn kcrr kcru kcuk kkck kkcn kkcr kkkk kknn kknu kkrc kkrk kkrn kkrr kkuu knck kncn kncr kncu knkk knnk knnr knrk knuk knur krcc krcn krcu krkc krkk krkn krkr krku krnk krnn krnu krrc krrk krrn krrr kruc kruk krun krur kucc kucr kukk kukn kuku kunc kunk kunr kunu kurk kurr kuru kuuk kuur kuuu nccc nccn nccr nccu ncnc ncrc ncuk nnnn nrrc nuck nucu nuku nunc nunk nunn nurc nurn nurr nuru nuuk rccc rcnr rrrr rrun ruck rukk rukn ruku runc runk runn rurc ruru ruun ucrc ukcc uknc ukrc ukur uncc unkn uruk urun urur uuuu