cccc cccm cccs ccmc ccmm ccms ccoc ccom ccrc ccrs ccss cmcc cmcs cmmc cmms cmoc cmos cmrr cmrs cmsc coco com- comc comm como comr coms coom coos cor- corc corm coro corr cors cosc cosm coso coss crcc crcr crmo crms croc crom croo cror crss cscc csco cscr cscs csmc csom csor csos csrc csrs cssm cssr mccc mcmc mcrc mcss mmcc mmcm mmcs mmmc mmmm mmms mmor mmrc mmsc moco mocs momo moms mooc moor moos moro mors mosc moso moss mr-c mrcc mrcs mrmc mrrc mrsc mscc msco msmc msmm msms msor mssm mssr occc ocms ocom ocos ocro ocrr ocrs omo- omoo omor omro oocr ooms oooo ooos orco orcs ormo oro- orom oror oros orro orrs orso oscc osco osm- osmo osoo osor osos osro osso rccc rccs rcms rcos rcsc rcss rmsc rocc roco rocs romm romo roms room roor roos rorc roro rosc roso ross rrmc rrrr rscc rscs rsos s-os sccc sccm sccs scmc scmm scmo scms scom scoo scor scr- scrc scrs scsc scso scsr smcc smoc smos smsc smss socm soco socr socs somm somo soom soor soos sorm soro sorr sors soso soss srcc srmc sros sscc sscs ssmc ssoc ssrc ssrm ssrs sssc sssm ssss