cccc cccp cccs ccnc ccnp ccnr ccns ccoc ccpn ccpp ccpr ccps ccrc ccrp ccrs ccsn ccsp ccss cnco cncp cnrc cnrr cnss coco cocp con- conc conn cono cons coon coop coos copo copp copr cops cor- corc corn coro corp corr cors cosc coso cosp coss cpcs cpns cpos cpps cprs cpsc cpso cpsr crcc crcr crns croc cron croo crop cror crpc crps crsp crss cscc csco cscr cscs csnp csor csos cspc csps csrc csrs cssr nccc nccn nccp nccr nccs ncnc ncoc ncor ncos ncpc ncrc ncrp ncsc ncss nnnn nnos nnpr nnss noco nocs non- nonn nono nons noo- noon nooo noop noor noos nops nor- norc norn noro norr nors nos- noss npcc nppc npss nrcs nroc nron nrpc nrpn nrps nrrc nrsc nrsp nscc nscs nsnr nsos nspc nsps nsrc nssc nsso nssp nssr nsss occc occn ocon ocos ocpp ocro ocrr ocrs onc- onco onno onon onor onos onsc onso oocr oons oooo ooos oops opo- opon opor opos oppo opps orco orcs ornc orno orns oro- oron oror oros orpc orps orro orrs orso oscc osco osno osnr osoo osor osos osro osso pccc pccs pcns pcos pcpn pcpp pcps pcrc pcso pnon pnpo pnpp pnro pnsc poco pocs ponc pono ponp pons poon poop poor poos pop- popc popo popp pops porc porn poro porr pors posn poso poss ppcc ppcs ppos pppn pppo pppp ppps pprc ppss prcc prcp prcs prnp pro- proc pron proo prop pros prps prrs prsc prso prss psco psnc psnr psoc pson psos pspp pspr psps psrp pssc psso rccc rccs rcnr rcon rcos rcpo rcps rcsc rcss rnco rncp rncs rnsp rocc roco rocs ronc rono rons roon roop roor roos ropo rops rorc roro rosc roso rosp ross rpcs rpon rpos rppn rpps rrrr rrsp rscc rscn rscs rsnn rsno rsnr rsos rspo rsps s-os sccc sccp sccs scnr scon scoo scop scor scpo scps scr- scrc scrn scrs scsc scsn scso scsr sncc snco sncp snns snoc snoo snop snor snos snpo snpp snrs soco socr socs son- sono sons soon soop soor soos sopo sopp sops sorn soro sorr sors soso soss spcc spco spcs spns spoc spon spoo spop spor spos spps spro sprs spso spsp spss srcc srnn srno sros srpc srps srsp sscc sscp sscs ssns ssoc ssop sspc sspo ssps ssrc ssrs sssc ssss