-er c-- ccc ccd cce ccf ccp ccr cct cdc cdd cde cdf cdp cdr cdt ce- cec ced cee cef cep cer cet cfc cfd cfe cff cfp cfr cft cpc cpd cpe cpf cpp cpr cpt crc crd cre crf crp crr crt ctc ctd cte ctf ctp ctr ctt dcc dcd dce dcf dcp dcr dct ddc ddd dde ddf ddp ddr ddt de- dec ded dee def dep der det dfc dfd dfe dff dfp dfr dft dpc dpd dpe dpf dpp dpr dpt drc drd dre drp drr drt dtc dtd dte dtf dtp dtr dtt ec- ecc ecd ece ecf ecr ect ed- edc edd ede edf edp edr edt eec eed eee eef eep eer eet ef- efc efd efe eff efp efr eft ep- epc epd epe epf epp epr ept erc erd ere erf erp err ert etc etd ete etf etp etr ett fcc fcd fce fcf fcp fcr fct fdc fdd fde fdf fdp fdr fdt fec fed fee fef fep fer fet ffc ffd ffe fff ffp ffr fft fpc fpd fpe fpp fpr fpt frc frd fre frf frp frr frt ftc ftd fte ftf ftp ftr ftt p-p pcc pcd pce pcf pcp pcr pct pdc pdd pde pdf pdp pdr pdt pec ped pee pef pep per pet pfc pfd pfe pff pfp pfr pft ppc ppd ppe ppf ppp ppr ppt prc prd pre prf prp prr prt pt- ptc ptd pte ptf ptp ptr ptt rcc rcd rce rcf rcp rcr rct rdc rdd rde rdf rdp rdr rdt re- rec red ree ref rep rer ret rfc rfd rfe rff rfp rfr rft rpc rpd rpe rpf rpp rpr rpt rrc rrd rrf rrp rrr rrt rtc rtd rte rtf rtp rtr rtt tcc tcd tce tcf tcp tcr tct tdc tdd tde tdf tdp tdr tdt te- tec ted tee tef tep ter tet tfc tfd tfe tff tfp tfr tft tpc tpd tpe tpf tpp tpr tpt trc trd tre trf trp trr trt ttc ttd tte ttf ttp ttr ttt

c-cd cccc cccf cccp ccdc ccdf ccdp ccdr cced ccee ccfc ccfd ccff ccpe ccpp ccpr ccrc ccre ccrf ccrp ccrt cctc cctt cd-e cd-r cddr cdec cdef cder cdfe cdre cec- cece cecp cect cedd cede cedt ceec cef- cefc cepc cepe cepp cepr cept cer- cerc cerd cere cerf cerp cert cet- cete cetp cfcf cfdp cffr cfpr cfre cfrp cfrt cftc cfte cftr cpce cpep cper cpff cpft cppd cpre cprt cptp cptr crcc crce crcr crdc cre- crec cred cree crep cret crfc crpc crrt crtc crtf crtp ctcf ctcp ctec ctep ctfc ctpp ctrc ctrp dccc dccp dcct dcfc dctc dddd ddrc ddre dec- decc decd dece dect dedd dede deed deef deep deer deet defe deff deft depc depe depp depr dept der- derc dere derf derp derr dete detr dfcc dfdt dfer dfrf dftr dpcp dpdt dper dppc dred dree dref dret drfc dtcc dtdp dted dtfc dttp eccc ecce ecct ecdc ecdf eced ecef ecfc ecfr ecpd ecpp ecrc ecrf ecrr ect- ectc ectf eddc edde eddp ede- eder eede eeee eefe eerc eetc eete efet eft- eftp epcc epec epee eper epfc eppc eppp eprp epte ercc erce ercp erde erdf erec ered erer eret erfc erft erpe errc erre etcc etec etee eter etfc etfe etre ette fccf fccp fdtc fece fect fede feed feer feet fefc fefe feff fepc ferc ferd fere ferr fert fete fetp fetr fett ffcc ffee ffff ffrr fftf fp-c fpcc fpct fpdt fprf frcc frcp fred free frep fret frfc frpd ft-c ftcd fter ftfc ftpe pccc pcce pcep pcer pcfc pcpp pcrc pcrd pcre pcrf pcte pdcp pdpr pdrc pdtc pece pecr pect ped- pede pedf peec peed peep peer peet pefc peff pepd pepe per- perc perd pere perf perp perr pert pete petr pett pfce pfet pfff pffr pfft pfte ppcc ppcd pper pppd pppp pprc pprf pptt prcc prcd prcf prcp pre- prec pred pree pref prep pret prfc prpd prrd prtc prtp prtr ptcc ptdc pter ptpd ptrd ptrf pttc rccc rcdc rcde rcep rcet rcfc rcpd rcpt rcrd rctc rder rdpc recc recd rece recp recr rect redc redd rede redr reed reef reep reet refd refe reff refr reft repe repp repr rept rerd rere rert retd rete retr rett rfef rffc rftc rpdp rpet rpfc rptd rred rrfc rrrr rtcc rtce rtdt rtee rtfc rttp tccc tcdd tcep tcfc tctc tdff tecr tect tedd tede teec teed teef teer teet tefc teff teft tepe tepp ter- terc tere terf terp terr tete tetr tett tfdc tfec tfpt tftc tftp tpcd tpcp tpdf tped tper tppd tppp tppr tpte tptp tptr trcc tre- trec tred tree tref tret trfc trfd trfr trpc trpe trpp trtc trte trtr ttcp tter ttfc ttff tttt

-tree c-p-c c-tec ccccc ccett ceded ceder cedr- cedre ceede ceere cepet cerc- cerce cerec cered cerer ceret cerre certe cetpd cette cpcfc cpctc crece crede creed creep creer creft crepe crept crete cteep ctree cttee ddddd decet dedde dedee deder deece deede deefe deeff deepc deepe deepp deere defce defed defer defet deffe depce derce derde dered derpt derre deter detre dette drdre dredd drede dreed dreep dreff dreft drepe drere e-dee ectfe edder eddre edere edred eeeee eefde eeped eepee eerde efere efetf effed effer effet efter eperc eptfe erdec erdre erect erede erept erere erfde erred erte erter etete etree etter fedde fedee feder feere ferce ferde fered feret ferr- ferre ferte feted feter fette frcpc frede freed freep freer freet frere frett ftrtt p-rep pcept pcert pctct pedee peece peere peert peete pepee peppe pept- perce perde perec perer peret perre perte peter petr- petre pette prece prede preef preff prepd prete pter- ptere ptprc ptprd ptpre ptprf ptprr ptprt recce reced recep recet recpt rect- recte redde reder reece reede reefe reeft reepe reere refed refer refet reffe repec