c-cd cccc cccs ccdc ccdr ccds ccoc ccod ccrc ccrs ccsd ccss cd-r cdcs cddr cdos cdrs cdss coco codd cods cood coos cor- corc cord coro corr cors cosc coso coss crcc crcr crdc croc crod croo cror crss cscc cscd csco cscr cscs csdr csor csos csrc csrd csrs cssd cssr dccc dccs dcds dcos dcsc dcss dddd ddoc ddrc ddss doco docs dod- dodd dodo dods dood door doos dorc dord doro dorr dors doso doss drod drrs dscc dscr dscs dsdr dsos dsrc dsrr dssc occc ocds ocos ocro ocrr ocrs oddd odds odoo odor odos odso oocr oooo ooos oord orco orcs ordo ords oro- oror oros orro orrs orso oscc osco osoo osor osos osrd osro ossd osso rccc rccs rcdc rcds rcos rcrd rcsc rcsd rcss rdoc rdos rdso rocc roco rocs rodd rodo rods rood roor roos rorc roro rosc roso ross rrrr rscc rscs rsdd rsds rsos s-os sccc sccs scdc scds scoo scor scr- scrc scrs scsc scsd scso scsr sdcc sdco sddc sdds sdrc sdrs sdsc sdss soco socr socs sodd sodo sods sood soor soos sord soro sorr sors soso soss srcc sros srsd sscc sscs ssdc ssdd ssoc ssrc ssrs sssc ssss