cccc ccci cccs cccv ccic ccii ccir ccis cciv ccoc ccrc ccri ccrs ccsi ccss ccvi ccvo ccvs cicc cici cico cicr cics ciii ciis ciko cikr cior cios circ ciri cirk ciro cirr cirs cis- cisc cisk cisr ciss cisv civc civo ckck ckco ckcs ckcv ckoc ckoi ckoo ckor ckos ckrc ckso ckvo cock coco coir cois cok- coko cook coos cor- corc cori cork coro corr cors cosc cosi coso coss covo crcc crcr cric crik cris crkc croc crok croo cror crss cscc csci csco cscr cscs csik csio csir csis csks csor csos csrc csrs cssr cvcc cvii cvrr cvss iccc icci icco iccr iccs icis icks icoc icor icos icrc icrr icrs icsc icsi icsr icss iiii iiio iiis iioi iioo iios iirc iirs iisc iisi iisr ikki ikko ikoo ikri ioci ioii ioio ioko iooi iooo ioos iori iors ioso ircc ircs iri- iric irio iris irki irks iroc irov irrc irri irrs irvs iscc isci isco iscr iscs isic isis isko iso- isoc isok isor isos isri issc issi isso issr isss ivic ivor ivrs k-ci k-os kccc kcci kcck kccr kccv kcic kcii kcir kcis kciv kckc kckk kcko kckr kckv kcor kcos kcrc kcri kcro kcrr kcrs kcrv kcsc kcsi kcsr kcss kcvi kcvk kcvo kcvr kcvs kcvv kicc kick kicr kics kiic kiii kiik kiis kikc kiki kikk kiko kikr kioc kioi kiok kioo kirc kiri kirk kiro kirr kirs kirv kisc kisi kisk kiso kisr kiss kisv kivi kkci kkck kkco kkcr kkcs kkic kkik kkkk kkoo kkor kkov kkrc kkrk kkro kkrr kkrs kkrv kksi kksr kkss kkvr kkvv koci kock kocs koii koir koiv kokc koki kokk koko kokr koks kooc kooi kook kooo koor koos koov korc kori kork koro korr kors korv kos- kosc kosi koso kosr koss kovc kovi kovk kovo kovr krcc krci krco krcs krik krio kris kriv krkc krki krkk krko krkr krks krkv kroc kroi krok kroo kror kros krov krrc krri krrk krro krrr krrs krsc krsk krsr krss krsv krvc krvi krvk krvo krvr krvs krvv ksci ksck ksco kscr kscs kscv ksii ksik ksir ksis ksiv kskk ksko kskr ksks ksoc ksoi ksok ksoo ksor ksos ksro ksrr ksrs ksrv kssi ksso kssr ksss ksvc ksvi ksvr kvcc kvci kvck kvco kvcr kvcs kvcv kvic kvik kvir kvis kviv kvoc kvoi kvok kvoo kvor kvov kvrc kvri kvro kvrr kvrv kvsc kvsi kvso kvsr kvss kvsv kvvr kvvs kvvv occc occi ocis ocks ocos ocro ocrr ocrs oici oick oiii oiko oiks oios oisc okic okir okko okok okor okro oksi okso oocr oooo ooos oosi orci orco orcs ori- oric orio oris orko oro- orok oror oros orri orro orrs orsi orsk orso orvr orvs oscc osci osco osii osik osis oski osoi osoo osor osos osov osro ossi osso ovcs ovi- ovis ovo- ovoo rccc rccs rcic rcis rcos rcsc rcsi rcss rcvr rcvs ricc rick rico rics riis riki rikk rios riri rirs risc risi risk riso riss rivo rivs rkos rkss rksv rocc rock roco rocs roik roio roir rois roki rokk roko rokr roks rooi rook roor roos rorc rori rork roro rosc rosi roso ross rovi rovo rovs rrrr rscc rscs rsis rsos rv-c rvik s-ic s-ii s-iv s-os sccc sccs sci- scic scio scir scis sciv sck- scok scoo scor scr- scrc scri scrs scsc scsi scso scsr sicc sici sick sico sics siik siki siko sikr siks sior sios sirc siri sirk siro sirr sirs sisc sisi sisk siss sivi skic skik skio skir skis skiv skor skov skss soci sock soco socr socs soic soik soir sois soki sokk soko sook soor soos sori soro sorr sors sosi soso soss sosv sovo sovs srcc sris sros sscc ssci sscs ssis ssoc ssrc ssri ssrs sssc sssi ssss svcc svcs svic svir svor svsc vcci vcrs vic- vici vick vico vics viii viik viki viko vios virc viri virk viro virr visc visi visk viso viss vivi vivo vkor voic voio voir vois voks vooc voor vor- vori voro vors vosi voso voss vovk vrci vrio vris vroc vrsi vsic vssc vvvv