c-cd cccc ccci cccs ccdc ccdi ccdr ccds ccic ccid ccii ccir ccis ccoc ccod ccrc ccri ccrs ccsd ccsi ccss cd-r cdcs cddr cdic cdii cdio cdis cdos cdrs cdss cicc cici cico cicr cics cidc cidi cidr cids ciid ciii ciis cior cios circ ciri ciro cirr cirs cis- cisc cisd cisr ciss coco codd codi cods coir cois cood coos cor- corc cord cori coro corr cors cosc cosi coso coss 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 dccc dcci dccs dcds dcii dcio dcis dcos dcsc dcss dddd ddoc ddrc ddss dici dico didi dido dids diii diis dioc dior dios dird dirr dirs dis- disc disd disi diso diss doci doco docs dod- dodd dodi dodo dods doid dois dood door doos dorc dord dori doro dorr dors dosi doso doss dric drod drrs dscc dscr dscs dsdr dsos dsrc dsri dsrr dssc dssi 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 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 irrc irri irrs iscc iscd isci isco iscr iscs isdc isds isic isis iso- isoc isor isos isri issc issi isso issr isss 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 oscc osci osco osdi osii osis osoi osoo osor osos osrd osro ossd ossi osso rccc rccs rcdc rcds rcic rcid rcis rcos rcrd rcsc rcsd rcsi rcss rdio rdoc rdos rdso ricc rico rics ridc ridd ridi rido rids riis rios riri rirs risc risd risi riso riss rocc roco rocs rodd rodi rodo rods roid roio roir rois rood rooi roor roos rorc rori roro rosc rosi roso ross rrrr rscc rscs rsdd rsds rsid rsis rsos s-ic s-ii s-os sccc sccs scdc scds sci- scic scid scio scir scis scoo scor scr- scrc scri scrs scsc scsd scsi scso scsr sdcc sdco 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 soci soco socr socs sodd sodo sods soic soir sois sood soor soos sord sori soro sorr sors sosi soso soss srcc sris sros srsd sscc ssci sscs ssdc ssdd ssid ssis ssoc ssrc ssri ssrs sssc sssi ssss