cccc ccci cccs cccu ccic ccii ccir ccis ccrc ccri ccrs ccsi ccss ccuc ccus cicc cici cicr cics cicu ciii ciis cikr circ ciri cirk cirr cirs cis- cisc cisk cisr ciss ciuc cius ckck ckcs ckrc crcc crcr cric crik cris criu crkc crss cruk crus cscc csci cscr cscs csik csir csis csks csrc csrs cssr csur csus cucc cuci cuck cui- cuir cuis cuk- curi curr curs cusk cuss cusu iccc icci iccr iccs iccu icis icks icrc icrr icrs icru icsc icsi icsr icss icus iiii iiis iirc iirs iisc iisi iisr iisu iiuc ikki ikri iksu ircc ircs ircu iri- iric iris irki irks irrc irri irrs irus iscc isci iscr iscs iscu isic isis isku isri issc issi issr isss issu isus iucc iuiu iuss k-ci kccc kcci kcck kccr kccu kcic kcii kcir kcis kciu kckc kckk kckr kcrc kcri kcrr kcrs kcru kcsc kcsi kcsr kcss kcsu kcui kcuk kicc kick kicr kics kiic kiii kiik kiis kiiu kikc kiki kikk kikr kiku kirc kiri kirk kirr kirs kiru kisc kisi kisk kisr kiss kisu kiur kiuu kkci kkck kkcr kkcs kkic kkik kkkk kkrc kkrk kkrr kkrs kksi kksr kkss kksu kkus kkuu krcc krci krcs krcu krik kris krkc krki krkk krkr krks krku krrc krri krrk krrr krrs krsc krsk krsr krss krsu kruc krui kruk krur ksci ksck kscr kscs kscu ksii ksik ksir ksis kskk kskr ksks ksku ksrr ksrs kssi kssr ksss kssu ksui ksuu kucc kuci kucr kuic kuik kuki kukk kuks kuku kuri kurk kurr kurs kuru kusc kusu kuuk kuur kuuu rccc rccs rcic rcis rcsc rcsi rcss ricc rick rics riis riki rikk riku riri rirs risc risi risk riss risu rius rkss rrrr rscc rscs rsis ruci ruck ruis ruki rukk ruku rurc ruri rurs ruru rusi rusk russ rusu s-ic s-ii sccc sccs sci- scic scir scis sck- scr- scrc scri scrs scsc scsi scsr scsu scur sicc sici sick sics sicu siik siki sikr siks siku sirc siri sirk sirr sirs siru sisc sisi sisk siss sisu siui sius skic skik skir skis skiu skss skui skur srcc sris sscc ssci sscs ssis ssrc ssri ssrs sssc sssi ssss suc- succ suci suck sucr sucs suir suis suki suks suku sur- surc suri surr surs suru sus- susi susk suss susu suus ucci ucrc ucsc ucsu uirr ukcc ukrc uksc ukur urci uric urik uris uriu urri ursi urss ursu uruk urur urus us-k uscc uscs usis ussc ussr usss ussu usui usus uuri uusi uuuu