c-cd cccc ccci cccs ccdc ccdi ccdr ccds ccic ccid ccii ccir ccis ccrc ccri ccrs ccsd ccsi ccss cd-r cdcs cddr cdic cdii cdis cdrs cdss cicc cici cicr cics cidc cidi cidr cids ciid ciii ciis circ ciri cirr cirs cis- cisc cisd cisr ciss crcc crcr crdc cric cris crss cscc cscd csci cscr cscs csdr csid csir csis csrc csrd csrs cssd cssr dccc dcci dccs dcds dcii dcis dcsc dcss dddd ddrc ddss dici didi dids diii diis dird dirr dirs dis- disc disd disi diss dric drrs dscc dscr dscs dsdr dsrc dsri dsrr dssc dssi iccc icci iccr iccs icdc icdd icis icrc icrr icrs icsc icsd icsi icsr icss idcr idic idid idir idis idrc idsc idss iicd iiii iiis iirc iirs iisc iisd iisi iisr ircc ircd ircs irdc irds iri- iric irid iris irrc irri irrs iscc iscd isci iscr iscs isdc isds isic isis isri issc issi issr isss rccc rccs rcdc rcds rcic rcid rcis rcrd rcsc rcsd rcsi rcss ricc rics ridc ridd ridi rids riis riri rirs risc risd risi riss rrrr rscc rscs rsdd rsds rsid rsis s-ic s-ii sccc sccs scdc scds sci- scic scid scir scis scr- scrc scri scrs scsc scsd scsi scsr sdcc sddc sdds sdic sdrc sdrs sdsc sdss sicc sici sics sidd sidi sidr sids sirc siri sirr sirs sisc sisd sisi siss srcc sris srsd sscc ssci sscs ssdc ssdd ssid ssis ssrc ssri ssrs sssc sssi ssss