c-- ccc ccd cck cco ccp ccr ccs cdc cdd cdk cdo cdp cdr cds ckc ckd cko cks co- coc cod cok coo cop cor cos cpc cpd cpk cpo cpp cpr cps crc crd crk cro crp crr crs csc csd csk cso csp csr css dcc dcd dck dco dcp dcr dcs ddc ddd ddk ddo ddp ddr dds dkc dkk dko dkp dkr dks doc dod dok doo dop dor dos dpc dpd dpk dpo dpp dpr dps drc drd drk dro drp drr drs dsc dsd dsk dso dsp dsr dss kcc kcd kck kcp kcr kcs kdc kdk kdo kdp kdr kds kkc kkk kkp kkr kks koc kod kok koo kop kor kos kpc kpd kpk kpo kpp kpr kps krc krd krk kro krp krr krs ksc ksd ksk kso ksp ksr kss oc- occ ocd ock oco ocp ocr ocs odc odd odo odp odr ods okc okd okk oko okp okr oks oo- ooc ood ook ooo oop oor oos op- opc opd opk opo opp opr ops or- orc ord ork oro orp orr ors os- osc osd osk oso osp osr oss p-p pcc pcd pck pco pcp pcr pcs pdc pdd pdk pdo pdp pdr pds pkc pkd pko pkp pkr pks poc pod pok poo pop por pos ppc ppd ppk ppo ppp ppr pps prc prd prk pro prp prr prs ps- psc psd psk pso psp psr pss rcc rcd rco rcp rcr rcs rdc rdd rdo rdp rdr rds rkc rkk rko rkp rks roc rod rok roo rop ror ros rpc rpd rpk rpo rpp rpr rps rrc rrd rrk rrp rrr rrs rsc rsd rsk rso rsp rsr rss scc scd sck sco scp scr scs sdc sdd sdk sdo sdp sdr sds sk- skc skd skk sko skp skr sks soc sod sok soo sop sor sos spc spd spk spo spp spr sps sr- src srd srk sro srp srr srs ss- ssc ssd ssk sso ssp ssr sss

c-cd cccc cccp cccs ccdc ccdp ccdr ccds ccoc ccod ccpp ccpr ccps ccrc ccrp ccrs ccsd ccsp ccss cd-r cdcs cddr cdos cdps cdrs cdss ckck ckco ckcs ckdo ckoc ckoo ckor ckos ckpc ckpr ckrc ckrd ckso cock coco cocp codd cods cok- coko cood cook coop coos copd copo copp copr cops cor- corc cord cork coro corp corr cors cosc coso cosp coss cpcs cpos cppd cpps cprs cpsc cpsk cpso cpsr crcc crcr crdc crkc crkp croc crod crok croo crop cror crpc crps crsp crss cscc cscd csco cscr cscs csdp csdr csks csor csos cspc cspd csps csrc csrd csrs cssd cssr dccc dccp dccs dcds dcop dcos dcpo dcps dcrk dcsc dcss dddd ddoc ddpo ddps ddrc ddss dkdc dock doco docs dod- dodd dodo dods doko dood dook doop door doos dopo dopp dopr dops dorc dord dork doro dorp dorr dors dosk doso doss dpcp dpos dppc dprk dpsd drod drop drrs drsp dscc dscp dscr dscs dsdp dsdr dsos dsps dsrc dsrp dsrr dssc dssp k-os kccc kccd kcck kccr kcdc kcdd kcdr kcds kckc kckk kcko kckr kcor kcos kcpc kcpo kcpr kcps kcrc kcro kcrp kcrr kcrs kcsc kcsd kcsp kcsr kcss kdcc kdcd kdco kdcr kddc kddd kddk kddr kdkd kdkk kdko kdkr kdoc kdok kdpr kdps kdro kdrs kdsc kdsd kdsk kdsp kdsr kdss kkcd kkck kkco kkcr kkcs kkdc kkdd kkdo kkkk kkoo kkor kkpc kkpk kkps kkrc kkrk kkro kkrr kkrs kksd kksp kksr kkss kocd kock kocp kocs kodk kodo kods kokc kokk koko kokp kokr koks kooc kook kooo koop koor koos kopp kopr kops korc kord kork koro korr kors kos- kosc kosd koso kosp kosr koss kpcc kpcr kpcs kpdc kpdo kpdr kpkk kpkr kpoc kpod kpok kpoo kpop kppc kppd kppk kppo kppp kppr kprc kprd kprk kpro kprp kprr kprs kpsc kpsd kpso kpsp krcc krcd krco krcs krdc krdd krdo krdr krds krkc krkd krkk krko krkr krks kroc krod krok kroo krop kror kros krpr krps krrc krrk krro krrr krrs krsc krsd krsk krsr krss ksck ksco kscr kscs ksdc ksdk ksdp ksdr ksds kskd kskk ksko kskr ksks ksoc ksok ksoo ksop ksor ksos kspc kspd kspk kspo kspr ksps ksro ksrp ksrr ksrs ksso kssr ksss occc ocds ocks ocos ocpd ocpp ocro ocrr ocrs oddd odds odoo odop odor odos odrp odso okko okok okor okpo okro okso oocr oooo ooos oops oord opds opo- opor opos oppo opps orco orcs ordo ords orko oro- orok oror oros orpc orps orro orrs orsk orso oscc osco osoo osor osos osrd osro ossd osso pccc pccs pcks pcod pcos pcpp pcps pcrc pcrd pcso pdcp pdoc pdos pdpr pdrc pdrs pdsd pdss pkcs pocd pock poco pocs pod- podd podo pods poko pood pook poop poor poos pop- popc popo popp pops porc pork poro porr pors posk poso poss ppcc ppcd ppcs ppdk ppds ppod ppos pppd pppo pppp ppps pprc ppss prcc prcd prcp prcs pro- proc prod proo prop pros prpd prps prrd prrs prsc prsd prso prss psco psdc psdp psdr psds psoc psos pspp pspr psps psrd psrk psrp pssc psso rccc rccs rcdc rcds rcos rcpd rcpo rcps rcrd rcsc rcsd rcss rdoc rdos rdpc rdso rkos rkss rocc rock roco rocs rodd rodo rods rokk roko rokr roks rood rook roop roor roos ropo rops rorc rork roro rosc roso rosp ross rpcs rpdp rpos rpps rrrr rrsp rscc rscs rsdd rsds rsos rspk rspo rsps s-os sccc sccp sccs scdc scdp scds sck- scok scoo scop scor scpo scps scr- scrc scrs scsc scsd scso scsr sdcc sdco sddc sdds sdpr sdps sdrc sdrs sdsc sdss skop skor skpc skpo sksd skss sock soco socr socs sodd sodo sods sokk soko sood sook soop soor soos sopd sopo sopp sops sord soro sorr sors soso soss spcc spco spcs spdc spdp spdr spkr spoc