cccc cccs cccu ccnc ccnr ccns ccnu ccrc ccrs ccsn ccss ccuc ccus ckck ckcs cknc ckns ckrc cnrc cnrr cnss crcc crcr crkc crns crss cruk crun crus cscc cscr cscs csks csrc csrs cssr csur csus cucc cuck cucn cuk- curn curr curs cusk cuss cusu kccc kcck kccr kccu kckc kckk kckn kckr kcnr kcns kcrc kcrn kcrr kcrs kcru kcsc kcsn kcsr kcss kcsu kcuk kkck kkcn kkcr kkcs kkkk kknn kkns kknu kkrc kkrk kkrn kkrr kkrs kksn kksr kkss kksu kkus kkuu knck kncn kncr kncu knkk knnk knnr knns knrk knrs knsc knsk knsn knsr knss knsu knuk knur knus krcc krcn krcs krcu krkc krkk krkn krkr krks krku krnk krnn krnu krrc krrk krrn krrr krrs krsc krsk krsn krsr krss krsu kruc kruk krun krur ksck kscn kscr kscs kscu kskk kskn kskr ksks ksku ksnc ksnk ksnn ksnr ksns ksrn ksrr ksrs kssn kssr ksss kssu ksun ksuu kucc kucr kukk kukn kuks kuku kunc kunk kunr kuns kunu kurk kurr kurs kuru kusc kusn kusu kuuk kuur kuuu nccc nccn nccr nccs nccu ncnc ncrc ncsc ncss ncuk nnnn nnss nrcs nrrc nrsc nscc nscs nskk nsnr nsrc nssc nssr nsss nuck nucs nucu nuku nunc nunk nunn nuns nurc nurn nurr nurs nuru nuss nusu nuuk rccc rccs rcnr rcsc rcss rkss rncs rrrr rrun rscc rscn rscs rsnn rsnr ruck rukk rukn ruku runc runk runn runs rurc rurs ruru rusk russ rusu ruun sccc sccs sck- scnr scr- scrc scrn scrs scsc scsn scsr scsu scun scur skn- skss skun skur sncc snns snrk snrs snur snus srcc srnn sscc sscs ssns ssrc ssrs sssc ssss suc- succ suck sucr sucs suks suku sun- sunk sunn suns sunu sur- surc surn surr surs suru sus- susk suss susu suus ucrc ucsc ucsu ukcc uknc ukrc uksc ukur uncc uncs unkn unks unns unrs uns- unsc unus urns urss ursu uruk urun urur urus us-k uscc uscs usnc usnr usnu ussc ussr usss ussu usun usus uuuu