cccc ccci cccs cccv ccic ccii ccis cciv ccoc ccsi ccss ccst cctc cctt cctv ccvi ccvo ccvs cicc cici cico cics cict ciii ciis ciit cios cis- cisc ciss cist cisv cisy citi cito cits citt citv city civc civo civy coco coct cois coit coos coot cosc cosi coso coss cost cosy cotc coti coto cots cott coty covo covy coyo coys coyt cscc csci csco cscs csio csis csit csos csot cstc csto csts csys ctic ctos ctot ctsc ctss ctts ctvo ctvt cvcc cvii cvss cyc- cycc cycs cyst cyt- cyto cyy- cyyc iccc icci icco iccs icct icis icoc icos icsc icsi icss icst icts ictv iiii iiio iiis iiit iioi iioo iios iisc iisi iist iitt ioci ioii ioio ioit iooi iooo ioos ioso ioto iscc isci isco iscs isct isic isis isit iso- isoc isos issc issi isso isss issy istc isti isto ists isty isys itcs itic itis itoi itoo itos itsi itso itsy itto itty ivic ivys iyos occc occi occt ocis ocos oct- octi octo octs octy ocys oici oiii oios oisc oist oitc oiti oooo ooos oosi oost oots ooty oscc osci osco osii osis osoi osoo osos osov ossi osso ossy ostc osti osts osyt otic otis otit oto- otoo otos otov otoy otso otti otto otts ovcs ovi- ovis ovo- ovoo ovot oyss oyst s-ic s-ii s-iv s-os s-vt sccc sccs scct sccy sci- scic scio scis scit sciv scoo scot scsc scsi scso scst sctc scto scts sctv sicc sici sico sics siit sios siot sisc sisi siss sist sisy sit- sitc siti sito sits sitt sity sivi siyi soci soco socs socy soic sois soit soos soot sooy sosi soso soss sost sosv sotc soto sots sovo sovs soyo soys soyt sscc ssci sscs ssis ssit ssoc ssot sssc sssi ssss sstc ssts st-v stcc stcs stic stio stis stit stoo stos stot stoy stsi stss sttc stvs stys svcc svcs svic svit svoy svsc syco syis syso syss syst sytt sytv tccc tcos tcov tctc tcts ticc tico tics tiit tios tisi tiso tiss tist titc titi tito tits titt tivi tivo tivy tiyi tiyo to-y toci toco tois toit toos toot tosc tosi toso toss tost tosy totc toti toto tots tott toty tovo toyo toys toyt tscc tsis tsiv tsoi tsos tsoy tssi tsst tstc tsts tsvi tsys ttoy ttss tttt ttys tvis tvos tvss tvtv tvyo tyco tyss tyst tyti tyto tytt tyty vcci vic- vici vico vics vict viii vios visc visi viso viss vist visy viti vito vitt vivi vivo vivy voic voio vois voit vooc voot vosi voso voss voto voyi voys vsic vssc vsto vt-i vvvv vyis vyit vyos vyso vyss yccc yctc yiss yist yiti yivo yoit yoot yosi yoso yost yott yoyo ysco ysii yvto yyyy