cccc cccu ccnc ccnr ccnu ccny ccrc ccuc ckck ckcy cknc ckrc ckry cnnz cnrc cnrr crcc crcr crcz crkc cruk crun cruz cry- cryn cryz cucc cuck cucn cuk- cuny curn curr cury cuy- cuyr cuzy cyc- cycc cyn- cyrk cyun cyy- cyyc cyyn czyz kccc kcck kccr kccu kccy kckc kckk kckn kckr kcky kckz kcnr kcny kcnz kcrc kcrn kcrr kcru kcry kcrz kcuk kcuz kcyk kcyn kcyy kcyz kczz kkck kkcn kkcr kkcy kkkk kknn kknu kkrc kkrk kkrn kkrr kkrz kkuu kkyc kkyy kkyz kkzn kkzu kkzy kkzz knck kncn kncr kncu kncy knkk knnk knnr knnz knrk knry knuk knur knuz knyk knyn knyr knz knzr knzz krcc krcn krcu krkc krkk krkn krkr krku krky krkz krnk krnn krnu krny krrc krrk krrn krrr krry krrz kruc kruk krun krur kruz kryk kryn kryy krzk krzn krzr krzy krzz kucc kucr kukk kukn kuku kuky kunc kunk kunr kunu kuny kurk kurr kuru kury kurz kuuk kuur kuuu kuuz kuyn kuyu kuyy kuzn kuzu kuzz kycc kyck kycn kycr kykc kykk kykn kykr kyky kykz kynr kynu kynz kyrc kyrk kyrn kyuk kyun kyur kyuu kyyk kyyy kyyz kyzk kyzz kzcr kzkr kzky kzkz kznc kznk kznn kznu kzrc kzrk kzrr kzrz kzuu kzuz kzyr kzzk kzzn kzzr kzzy kzzz nccc nccn nccr nccu ncnc ncrc ncuk nnnn nrrc nuck nucu nuku nunc nunk nunn nuny nurc nurn nurr nuru nuuk nycc nycy nyny nyuk nzcc rccc rcnr rcyc rrrr rrun ruck rukk rukn ruku runc runk runn runy rurc ruru ruun ryck rynn ryuk ryun ucky ucrc ukcc ukky uknc ukrc ukur uncc unkn unky unuz unyk urcy urry uruk urun urur uruz uryn urzy uuuu uuyn uzun uzyn yccc yrun yryn yuck yuku yuky yuny yurn yury yuyu yuzu yyyy zuck zukr zunk zunz zurn zurr zuru zuuk zuun zuzu zzzz