cccc ccci cccs cccv ccic ccii ccir ccis cciv ccoc ccrc ccri ccrs ccrt ccsi ccss ccst cctc cctt cctv ccvi ccvo ccvs cicc cici cico cicr cics cict ciii ciis ciit ciko cikr cior cios circ ciri cirk ciro cirr cirs cirt cis- cisc cisk cisr ciss cist cisv citi cito cits citt citv civc civo ckck ckco ckcs ckcv ckoc ckoi ckoo ckor ckos ckot ckrc ckso ckst ckts ckvo cock coco coct coir cois coit cok- coko cook coos coot cor- corc cori cork coro corr cors cort cosc cosi coso coss cost cotc coti coto cots cott covo crcc crcr cric crik cris crit crkc croc crok croo cror crot crrt crss crst crtc crts crtv cscc csci csco cscr cscs csik csio csir csis csit csks csor csos csot csrc csrs cssr cstc csto cstr csts ctic ctor ctos ctot ctrc ctrs ctsc ctss ctts ctvo ctvt cvcc cvii cvrr cvss iccc icci icco iccr iccs icct icis icks icoc icor icos icrc icrr icrs icrt icsc icsi icsr icss icst icts ictv iiii iiio iiis iiit iioi iioo iios iirc iirs iisc iisi iisr iist iitr iitt ikki ikko ikoo ikri ioci ioii ioio ioit ioko iooi iooo ioos iori iors ioso ioto ircc ircs iri- iric irio iris irki irks iroc irov irrc irri irrs irti irts irvs iscc isci isco iscr iscs isct isic isis isit isko iso- isoc isok isor isos isri issc issi isso issr isss istc isti isto istr ists itcs itic itis itko itoi itoo itor itos itri itrs itsi itso itto ivic ivor ivrs k-ci k-os kccc kcci kcck kccr kcct kccv kcic kcii kcir kcis kcit kciv kckc kckk kcko kckr kckv kcor kcos kcot kcrc kcri kcro kcrr kcrs kcrt kcrv kcsc kcsi kcsr kcss kcst kctc kcti kcto kctv kcvi kcvk kcvo kcvr kcvs kcvv kicc kick kicr kics kict kiic kiii kiik kiis kiit kikc kiki kikk kiko kikr kikt kioc kioi kiok kioo kiot kirc kiri kirk kiro kirr kirs kirt kirv kisc kisi kisk kiso kisr kiss kist kisv kitc kiti kito kitr kits kitt kitv kivi kkci kkck kkco kkcr kkcs kkct kkic kkik kkit kkkk kkoo kkor kkot kkov kkrc kkrk kkro kkrr kkrs kkrt kkrv kksi kksr kkss kkst kktc kktk kkts kktv kkvr kkvt kkvv koci kock kocs koct koii koir koit koiv kokc koki kokk koko kokr koks kooc kooi kook kooo koor koos koot koov korc kori kork koro korr kors kort korv kos- kosc kosi koso kosr koss kost kotc koti kotk koto kotr kots kott kotv kovc kovi kovk kovo kovr krcc krci krco krcs krik krio kris krit kriv krkc krki krkk krko krkr krks krkv kroc kroi krok kroo kror kros krov krrc krri krrk krro krrr krrs krrt krsc krsk krsr krss krst krsv krtc krti krtk krto krtr krts krtv krvc krvi krvk krvo krvr krvs krvv ksci ksck ksco kscr kscs kscv ksii ksik ksir ksis ksit ksiv kskk ksko kskr ksks ksoc ksoi ksok ksoo ksor ksos ksro ksrr ksrs ksrt ksrv kssi ksso kssr ksss ksst kstc ksti kstk ksto kstr ksts kstt kstv ksvc ksvi ksvr ktcc ktck ktco ktcr ktcs ktcv ktic ktik ktis ktiv ktkc ktkk ktko ktkr ktks ktkt ktoc ktok ktoo ktor ktot ktrc ktri ktrk ktro ktrr ktrs ktrt ktrv ktsc ktso ktsr ktst kttc ktti kttk ktto kttr ktts kttt kttv ktvc ktvi ktvk ktvo ktvr ktvt kvcc kvci kvck kvco kvcr kvcs kvct kvcv kvic kvik kvir kvis kvit kviv kvoc kvoi kvok kvoo kvor kvot kvov kvrc kvri kvro kvrr kvrv kvsc kvsi kvso kvsr kvss kvst kvsv kvti kvtk kvto kvtr kvtt kvtv kvvr kvvs kvvv occc occi occt ocis ocks ocos ocro ocrr ocrs oct- octi octo octs oici oick oiii oiko oiks oios oirt oisc oist oitc oiti okic okir okko okok okor okot okro oksi okso okto oocr oooo ooos oort oosi oost oots orci orco orcs ori- oric orio oris orit orko oro- orok oror oros orot orri orro orrs orsi orsk orso ortc orto orts orvr orvs oscc osci osco osii osik osis oski osoi osoo osor osos osov osro ossi osso ostc osti ostr osts otic otis otit oto- otok otoo otor otos otov otro otrs otso otti otto otts ovcs ovi- ovis ovo- ovoo ovot rccc rccs rcic rcis rcos rcsc rcsi rcss rctc rcti rcts rctv rcvr rcvs ricc rick rico rics rict riis riki rikk rios riot riri rirs risc risi risk riso riss rist riti rito rits ritt rivo rivs rkos rkss rksv rkts rocc rock roco rocs roik roio roir rois roit roki rokk roko rokr roks rooi rook roor roos root rorc rori rork roro rort rosc rosi roso ross rost rotc roti rotk roto rotr rots rott rovi rovo rovs rrrr rscc rscs rsis rsos rsts rtcc rtss rtts rtvi rv-c rvik s-ic s-ii s-iv s-os s-vt sccc sccs scct sci- scic scio scir scis scit sciv sck- scok scoo scor scot scr- scrc scri scrs scsc scsi scso scsr scst sctc scto sctr scts sctv sicc sici sick sico sics siik siit siki siko sikr siks sior sios siot sirc siri sirk siro sirr sirs sirt sisc sisi sisk siss sist sit- sitc siti sito sits sitt sivi skic skik skio skir skis skit skiv skor skot skov skrt skss soci sock soco socr socs soic soik soir sois soit soki sokk soko sook soor soos soot sori soro sorr sors sort sosi soso soss sost sosv sotc sotk soto sots sovo sovs srcc srct sris sros srtr srtv sscc ssci sscs ssis ssit ssoc ssot ssrc ssri ssrs sssc sssi ssss sstc ssts st-v stcc stcs stic stik stio stir stis stit stks stok stoo stor stos stot strc stri strk stro strs stsi stss sttc sttr stvs svcc svcs svic svir svit svor svsc svtr tccc tcos tcov tctc tcts ticc tick tico tics tiit tiki tiko tios tiri tiro