c-cd cccc ccci cccs cccv ccdc ccdi ccdr ccds ccic ccid ccii ccir ccis cciv ccoc ccod ccrc ccri ccrs ccsd ccsi ccss ccvi ccvo ccvs cd-r cdcs cddr cdic cdii cdio cdis cdiv cdos cdrs cdss cdvd cdvi cicc cici cico cicr cics cidc cidi cidr cids ciid ciii ciis cior cios circ ciri ciro cirr cirs cis- cisc cisd cisr ciss cisv civc civo coco codd codi cods coir cois cood coos cor- corc cord cori coro corr cors cosc cosi coso coss covo crcc crcr crdc cric cris croc crod croo cror crss cscc cscd csci csco cscr cscs csdr csid csio csir csis csor csos csrc csrd csrs cssd cssr cvcc cvid cvii cvrd cvrr cvsd cvss dccc dcci dccs dccv dcds dcii dcio dcis dciv dcos dcsc dcss dcvd dcvi dddd ddoc ddrc ddss dici dico didi dido dids diii diis diiv dioc dior dios dird dirr dirs dis- disc disd disi diso diss divd divi divo divs doci doco docs dod- dodd dodi dodo dods doid dois dood door doos dorc dord dori doro dorr dors dosi doso doss dovi dric drod drrs dscc dscr dscs dsdr dsos dsrc dsri dsrr dssc dssi dsvd dvcs dvdr dvds dvi- dvii dvir dvor dvrs dvsr iccc icci icco iccr iccs icdc icdd icis icoc icod icor icos icrc icrr icrs icsc icsd icsi icsr icss idcr iddo idic idid idio idir idis idoc idos idrc idro idsc idso idss idvd iicd iiii iiio iiis iioi iioo iios iirc iirs iisc iisd iisi iisr ioci iod- iodd iodo ioii ioio iooi iooo ioos iori iors ioso ircc ircd ircs irdc irdo irds iri- iric irid irio iris iroc irod irov irrc irri irrs irvs iscc iscd isci isco iscr iscs isdc isds isic isis iso- isoc isor isos isri issc issi isso issr isss ivdr ivic ivod ivor ivrs occc occi ocds ocis ocos ocro ocrr ocrs odci oddd oddi odds odic odio odir odis odoo odor odos odso oici oido oids oiii oios oisc oisd oocr oodi ooid oooo ooos oord oosi orci orco orcs ordo ords ori- oric orid orio oris oro- oror oros orri orro orrs orsi orso orvr orvs oscc osci osco osdi osdv osii osis osoi osoo osor osos osov osrd osro ossd ossi osso ovcs ovi- ovid ovis ovo- ovod ovoo rccc rccs rcdc rcds rcic rcid rcis rcos rcrd rcsc rcsd rcsi rcss rcvr rcvs rdio rdoc rdos rdso rdvs ricc rico rics ridc ridd ridi rido rids riis rios riri rirs risc risd risi riso riss rivo rivs rocc roco rocs rodd rodi rodo rods roid roio roir rois rood rooi roor roos rorc rori roro rosc rosi roso ross rovi rovo rovs rrrr rscc rscs rsdd rsds rsid rsis rsos rv-c s-ic s-ii s-iv s-os sccc sccs scdc scds sci- scic scid scio scir scis sciv scoo scor scr- scrc scri scrs scsc scsd scsi scso scsr sdcc sdco sdcv sddc sdds sdic sdio sdrc sdrs sdsc sdss sicc sici sico sics sidd sidi sido sidr sids siod sior sios sirc siri siro sirr sirs sisc sisd sisi siss sivi soci soco socr socs sodd sodo sods soic soir sois sood soor soos sord sori soro sorr sors sosi soso soss sosv sovo sovs srcc sris sros srsd sscc ssci sscs ssdc ssdd ssid ssis ssoc ssrc ssri ssrs sssc sssi ssss svcc svcs svdo svic svir svod svor svsc vcci vcds vcrs vdcc vdio vdsi vdso vic- vici vico vics vidi vido vids viii vios virc viri viro virr visc visd visi viso viss vivi vivo vodo voic void voio voir vois vooc voor vor- vord vori voro vors vosi voso voss vrci vrdi vrio vris vroc vrsi vsic vssc vvvv