-er c-- ccc ccd cce cck cco ccp ccr cct cdc cdd cde cdk cdo cdp cdr cdt ce- cec ced cee cek ceo cep cer cet ckc ckd cko ckt co- coc cod coe cok coo cop cor cot cpc cpd cpe cpk cpo cpp cpr cpt crc crd cre crk cro crp crr crt ctc ctd cte ctk cto ctp ctr ctt dcc dcd dce dck dco dcp dcr dct ddc ddd dde ddk ddo ddp ddr ddt de- dec ded dee dek deo dep der det dkc dke dkk dko dkp dkr dkt doc dod doe dok doo dop dor dot dpc dpd dpe dpk dpo dpp dpr dpt drc drd dre drk dro drp drr drt dtc dtd dte dtk dto dtp dtr dtt ec- ecc ecd ece eck eco ecr ect ed- edc edd ede edk edo edp edr edt eec eed eee eek eeo eep eer eet ekc ekd eke eko ekp ekr ekt eo- eoc eod eoe eok eoo eop eor eot ep- epc epd epe epo epp epr ept erc erd ere erk ero erp err ert etc etd ete etk eto etp etr ett k-t kcc kcd kce kck kcp kcr kct kdc kde kdk kdo kdp kdr kdt ke- kec ked kee kek keo kep ker ket kkc kke kkk kkp kkr kkt koc kod koe kok koo kop kor kot kpc kpd kpe kpk kpo kpp kpr kpt krc krd krk kro krp krr krt ktc kte ktk kto ktp ktr ktt oc- occ ocd ock oco ocp ocr oct odc odd ode odo odp odr odt oec oed oee oeo oep oer oet okc okd oke okk oko okp okr oo- ooc ood ook ooo oop oor oot op- opc opd ope opk opo opp opr opt or- orc ord ore ork oro orp orr ort ot- otc otd ote otk oto otp otr ott p-p pcc pcd pce pck pco pcp pcr pct pdc pdd pde pdk pdo pdp pdr pdt pec ped pee pek peo pep per pet pkc pkd pke pko pkp pkr pkt poc pod poe pok poo pop por pot ppc ppd ppe ppk ppo ppp ppr ppt prc prd pre prk pro prp prr prt pt- ptc ptd pte ptk pto ptp ptr ptt rcc rcd rce rco rcp rcr rct rdc rdd rde rdo rdp rdr rdt re- rec red ree rek reo rep rer ret rkc rke rkk rko rkp rkt roc rod roe rok roo rop ror rot rpc rpd rpe rpk rpo rpp rpr rpt rrc rrd rrk rrp rrr rrt rtc rtd rte rtk rto rtp rtr rtt tcc tcd tce tck tco tcp tcr tct tdc tdd tde tdk tdo tdp tdr tdt te- tec ted tee tek teo tep ter tet tkc tke tkk tko tkp tkr tkt to- toc tod toe tok too top tor tot tpc tpd tpe tpk tpo tpp tpr tpt trc trd tre trk tro trp trr trt ttc ttd tte ttk tto ttp ttr ttt

c-cd cccc cccp ccdc ccdp ccdr cced ccee ccoc ccod ccpe ccpp ccpr ccrc ccre ccrp ccrt cctc cctt cd-e cd-r cddr cdec cder cdot cdre cec- cece ceco cecp cect cedd cede cedo cedt ceec ceke ceop ceor cepc cepe cepo cepp cepr cept cer- cerc cerd cere cero cerp cert cet- cete ceto cetp ckck ckco ckdo cker ckoc ckoo ckor ckot ckpc ckpr ckrc ckrd coce cock coco cocp coct codd code coed coep cok- coke coko cood cook coop coot copd cope copo copp copr copt cor- corc cord core cork coro corp corr cort cotc cote coto cott cpce cpep cper cppd cpre cprt cptp cptr crcc crce crcr crdc cre- crec cred cree creo crep cret crkc crkp croc crod croe crok croo crop cror crot crpc crrt crtc crtp ctcp ctec ctep ctor ctot ctpo ctpp ctrc ctrp dccc dccp dcct dcop dcpo dcrk dctc dddd ddoc ddot ddpo ddrc ddre dec- decc decd dece deck deco dect dedd dede dedo deed deek deep deer deet dek- deke deop deor depc depe depo depp depr dept der- derc dere derk dero derp derr dete detk deto detr dkdc doce dock doco doct dod- dodd dode dodo doek doer doke doko dood dook doop door doot dope dopo dopp dopr dopt dorc dord dore dork doro dorp dorr dort dotd dote dotk doto dott dpcp dpdt dper dppc dprk dred dree drek dret drod drop drot dtcc dtdp dted dtek dtor dtot dttp eccc ecce ecco ecct ecdc eced ecko eco- ecod ecop ecot ecpd ecpp ecrc ecrr ect- ectc ecto eddc edde eddo eddp ede- eder edoc edod eede eeee eeke eeoc eerc eero eetc eete ekco eked ekek eker eket ekpe ekpo eocd eode eore eotc eotd eoto epcc epec epee eper epoc epod epor epot eppc eppo eppp epro eprp epte ercc erce ercp erde erec ered erer eret erke eroc erod eroe eroo erpe errc erre erro etcc etco etec etee eter etoe etok etre etro ette etto kccc kccd kcck kccr kcct kcdc kcdd kcdr kcec kced kcee kceo kcep kcet kckc kckk kcko kckr kcoe kcor kcot kcpc kcpo kcpr kcpt kcrc kcro kcrp kcrr kcrt kctc kcte kcto kdcc kdcd kdce kdco kdcr kddc kddd kddk kddr kdec kdep kdet kdkd kdkk kdko kdkr kdkt kdoc kdoe kdok kdot kdpr kdro kdtd kdtp kdtr keck keco kecr kedc kedd kede kedo kedp kedr kedt keed keek keep keer keet kekc keke keko keok kep- kepc kepd kepe kept ker- kerc kere kerk kero kerp kerr kert ket- ketc ketd kete ketk keto ketp ketr kett kkcd kkck kkco kkcr kkct kkdc kkdd kkdo kkdt kked kkkk kkoo kkor kkot kkpc kkpk kkpt kkrc kkre kkrk kkro kkrr kkrt kktc kktk kocd kock kocp koct kode kodk kodo kodt koed kokc koke kokk koko kokp kokr kooc kook kooo koop koor koot kope kopp kopr kopt korc kord kore kork koro korr