cccc cccs ccnc ccnr ccns ccoc ccrc ccrs ccsn ccss cnco cnrc cnrr cnss coco con- conc conn cono cons coon coos cor- corc corn coro corr cors cosc coso coss crcc crcr crns croc cron croo cror crss cscc csco cscr cscs csor csos csrc csrs cssr nccc nccn nccr nccs ncnc ncoc ncor ncos ncrc ncsc ncss nnnn nnos nnss noco nocs non- nonn nono nons noo- noon nooo noor noos nor- norc norn noro norr nors nos- noss nrcs nroc nron nrrc nrsc nscc nscs nsnr nsos nsrc nssc nsso nssr nsss occc occn ocon ocos ocro ocrr ocrs onc- onco onno onon onor onos onsc onso oocr oons oooo ooos orco orcs ornc orno orns oro- oron oror oros orro orrs orso oscc osco osno osnr osoo osor osos osro osso rccc rccs rcnr rcon rcos rcsc rcss rnco rncs rocc roco rocs ronc rono rons roon roor roos rorc roro rosc roso ross rrrr rscc rscn rscs rsnn rsno rsnr rsos s-os sccc sccs scnr scon scoo scor scr- scrc scrn scrs scsc scsn scso scsr sncc snco snns snoc snoo snor snos snrs soco socr socs son- sono sons soon soor soos sorn soro sorr sors soso soss srcc srnn srno sros sscc sscs ssns ssoc ssrc ssrs sssc ssss