cccc ccci cccp cccv ccic ccii ccip ccir cciv ccoc ccpp ccpr ccrc ccri ccrp ccvi ccvo cicc cici cico cicr ciii ciko cikr cior cipo cipp circ ciri cirk ciro cirr civc civo ckck ckco ckcv ckoc ckoi ckoo ckor ckpc ckpr ckrc ckvo cock coco cocp coip coir cok- coko cook coop copi copo copp copr cor- corc cori cork coro corp corr covo cpic cpio cpri cpvc crcc crcr cric crik crip crkc crkp croc crok croo crop cror crpc cvcc cvii cvrr iccc icci icco iccp iccr icoc icor icpc icpo icrc icrr iiii iiio iioi iioo iiop iirc ikki ikko ikoo ikri ioci iocp ioii ioio ioko iooi iooo iori ipcc ipko ipop ippc ippo ippr ipri ircc iri- iric irio irip irki iroc irop irov irpc irrc irri ivic ivor k-ci kccc kcci kcck kccr kccv kcic kcii kcir kciv kckc kckk kcko kckr kckv kcor kcpc kcpi kcpo kcpr kcrc kcri kcro kcrp kcrr kcrv kcvi kcvk kcvo kcvp kcvr kcvv kicc kick kicp kicr kiic kiii kiik kiip kikc kiki kikk kiko kikr kioc kioi kiok kioo kip- kipi kipo kipp kipr kirc kiri kirk kiro kirp kirr kirv kivi kkci kkck kkco kkcr kkic kkik kkkk kkoo kkor kkov kkpc kkpk kkrc kkrk kkro kkrr kkrv kkvr kkvv koci kock kocp koii koir koiv kokc koki kokk koko kokp kokr kooc kooi kook kooo koop koor koov kopi kopp kopr korc kori kork koro korr korv kovc kovi kovk kovo kovr kpcc kpcr kpcv kpir kpkk kpkr kpoc kpok kpoo kpop kppc kppk kppo kppp kppr kppv kprc kpri kprk kpro kprp kprr kprv kpvc kpvr krcc krci krco krik krio kriv krkc krki krkk krko krkr krkv kroc kroi krok kroo krop kror krov krpi krpr krrc krri krrk krro krrr krvc krvi krvk krvo krvr krvv kvcc kvci kvck kvco kvcr kvcv kvic kvik kvip kvir kviv kvoc kvoi kvok kvoo kvop kvor kvov kvpi kvrc kvri kvro kvrp kvrr kvrv kvvp kvvr kvvv occc occi ocpp ocro ocrr oici oick oiii oiko oipc okic okir okko okok okor okpo okro oocr oooo opic opii opio opo- opor oppi oppo orci orco ori- oric orio orko oro- orok oror orpc orpi orri orro orvr ovi- ovo- ovoo ovpp pccc pcip pcpp pcrc picc pici pick pico picr piip piki pikk piko pipi pipo pipp pirc piri pirk piro pirr pivo pock poco poik poio poko pook poop poor pop- popc popi popo popp porc pori pork poro porr povo ppcc ppci ppic pppo pppp pprc prcc prcp pri- prii priv pro- proc proo prop prov prri pvco rccc rcic rcpi rcpo rcvr ricc rick rico riki rikk ripi ripp ripr riri rivo rivp rocc rock roco roik roio roir roki rokk roko rokr rooi rook roop roor ropo rorc rori rork roro rovi rovo rpii rrrr rv-c rvik vcci vic- vici vick vico viii viik viki viko vipr virc viri virk viro virr vivi vivo vkor voic voio voip voir vooc voor vor- vori voro vovk vpro vrci vrio vroc vvvv