c-- ccc ccd cck cco ccp ccr ccs cct cdc cdd cdk cdo cdp cdr cds cdt ckc ckd cko cks ckt co- coc cod cok coo cop cor cos cot cpc cpd cpk cpo cpp cpr cps cpt crc crd crk cro crp crr crs crt csc csd csk cso csp csr css cst ctc ctd ctk cto ctp ctr cts ctt dcc dcd dck dco dcp dcr dcs dct ddc ddd ddk ddo ddp ddr dds ddt dkc dkk dko dkp dkr dks dkt doc dod dok doo dop dor dos dot dpc dpd dpk dpo dpp dpr dps dpt drc drd drk dro drp drr drs drt dsc dsd dsk dso dsp dsr dss dst dtc dtd dtk dto dtp dtr dts dtt k-t kcc kcd kck kcp kcr kcs kct kdc kdk kdo kdp kdr kds kdt kkc kkk kkp kkr kks kkt koc kod kok koo kop kor kos kot kpc kpd kpk kpo kpp kpr kps kpt krc krd krk kro krp krr krs krt ksc ksd ksk kso ksp ksr kss kst ktc ktk kto ktp ktr kts ktt oc- occ ocd ock oco ocp ocr ocs oct odc odd odo odp odr ods odt okc okd okk oko okp okr oks oo- ooc ood ook ooo oop oor oos oot op- opc opd opk opo opp opr ops opt or- orc ord ork oro orp orr ors ort os- osc osd osk oso osp osr oss ost ot- otc otd otk oto otp otr ots ott p-p pcc pcd pck pco pcp pcr pcs pct pdc pdd pdk pdo pdp pdr pds pdt pkc pkd pko pkp pkr pks pkt poc pod pok poo pop por pos pot ppc ppd ppk ppo ppp ppr pps ppt prc prd prk pro prp prr prs prt ps- psc psd psk pso psp psr pss pst pt- ptc ptd ptk pto ptp ptr pts ptt rcc rcd rco rcp rcr rcs rct rdc rdd rdo rdp rdr rds rdt rkc rkk rko rkp rks rkt roc rod rok roo rop ror ros rot rpc rpd rpk rpo rpp rpr rps rpt rrc rrd rrk rrp rrr rrs rrt rsc rsd rsk rso rsp rsr rss rst rtc rtd rtk rto rtp rtr rts rtt scc scd sck sco scp scr scs sct sdc sdd sdk sdo sdp sdr sds sdt sk- skc skd skk sko skp skr sks skt soc sod sok soo sop sor sos sot spc spd spk spo spp spr sps spt sr- src srd srk sro srp srr srs srt ss- ssc ssd ssk sso ssp ssr sss sst stc std stk sto stp str sts stt tcc tcd tck tco tcp tcr tcs tct tdc tdd tdk tdo tdp tdr tds tdt tkc tkk tko tkp tkr tks tkt to- toc tod tok too top tor tos tot tpc tpd tpk tpo tpp tpr tps tpt trc trd trk tro trp trr trs trt tsc tsd tsk tso tsp tsr tss tst ttc ttd ttk tto ttp ttr tts ttt

c-cd cccc cccp cccs ccdc ccdp ccdr ccds ccoc ccod ccpp ccpr ccps ccrc ccrp ccrs ccrt ccsd ccsp ccss ccst cctc cctt cd-r cdcs cddr cdos cdot cdps cdrs cdss ckck ckco ckcs ckdo ckoc ckoo ckor ckos ckot ckpc ckpr ckrc ckrd ckso ckst ckts cock coco cocp coct codd cods cok- coko cood cook coop coos coot copd copo copp copr cops copt cor- corc cord cork coro corp corr cors cort cosc coso cosp coss cost cotc coto cots cott cpcs cpos cppd cpps cprs cprt cpsc cpsk cpso cpsr cptp cptr cpts crcc crcr crdc crkc crkp croc crod crok croo crop cror crot crpc crps crrt crsp crss crst crtc crtp crts cscc cscd csco cscr cscs csdp csdr csks csor csos csot cspc cspd csps cspt csrc csrd csrs cssd cssr cstc cstd csto cstr csts ctcp ctor ctos ctot ctpo ctpp ctps ctrc ctrp ctrs ctsc ctss ctts dccc dccp dccs dcct dcds dcop dcos dcpo dcps dcrk dcsc dcss dctc dcts dddd ddoc ddot ddpo ddps ddrc ddss ddts dkdc dock doco docs doct dod- dodd dodo dods doko dood dook doop door doos doot dopo dopp dopr dops dopt dorc dord dork doro dorp dorr dors dort dosk doso doss dost dotd dotk doto dots dott dpcp dpdt dpos dppc dprk dpsd dpst dpts drod drop drot drrs drsp dscc dscp dscr dscs dsdp dsdr dsos dsps dspt dsrc dsrp dsrr dssc dssp dsst dstc dsto dsts dtcc dtdp dtor dtot dtss dttp k-os kccc kccd kcck kccr kcct kcdc kcdd kcdr kcds kckc kckk kcko kckr kcor kcos kcot kcpc kcpo kcpr kcps kcpt kcrc kcro kcrp kcrr kcrs kcrt kcsc kcsd kcsp kcsr kcss kcst kctc kcto kdcc kdcd kdco kdcr kddc kddd kddk kddr kdkd kdkk kdko kdkr kdkt kdoc kdok kdot kdpr kdps kdro kdrs kdsc kdsd kdsk kdsp kdsr kdss kdst kdtd kdtp kdtr kkcd kkck kkco kkcr kkcs kkct kkdc kkdd kkdo kkdt kkkk kkoo kkor kkot kkpc kkpk kkps kkpt kkrc kkrk kkro kkrr kkrs kkrt kksd kksp kksr kkss kkst kktc kktk kkts kocd kock kocp kocs koct kodk kodo kods kodt kokc kokk koko kokp kokr koks kooc kook kooo koop koor koos koot kopp kopr kops kopt korc kord kork koro korr kors kort kos- kosc kosd koso kosp kosr koss kost kotc kotd kotk koto kotr kots kott 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 kprt kpsc kpsd kpso kpsp kptd kpto kptr kpts kptt krcc krcd krco krcs krdc krdd krdo krdr krds krkc krkd krkk krko krkr krks kroc krod krok kroo krop kror kros krpr krps krpt krrc krrk krro krrr krrs krrt krsc krsd krsk krsr krss krst krtc krtk krto krtr krts ksck ksco kscr kscs ksdc ksdk ksdp ksdr ksds kskd kskk ksko kskr