-er c-- ccc cce ccp ccr ccs cct ce- cec cee cep cer ces cet cpc cpe cpp cpr cps cpt crc cre crp crr crs crt csc cse csp csr css cst ctc cte ctp ctr cts ctt ec- ecc ece ecr ecs ect eec eee eep eer ees eet ep- epc epe epp epr eps ept erc ere erp err ers ert es- esc ese esp esr ess est etc ete etp etr ets ett p-p pcc pce pcp pcr pcs pct pec pee pep per pes pet ppc ppe ppp ppr pps ppt prc pre prp prr prs prt ps- psc pse psp psr pss pst pt- ptc pte ptp ptr pts ptt rcc rce rcp rcr rcs rct re- rec ree rep rer res ret rpc rpe rpp rpr rps rpt rrc rrp rrr rrs rrt rsc rse rsp rsr rss rst rtc rte rtp rtr rts rtt scc sce scp scr scs sct se- sec see sep ser ses set spc spe spp spr sps spt sr- src sre srp srr srs srt ss- ssc sse ssp ssr sss sst stc ste stp str sts stt tcc tce tcp tcr tcs tct te- tec tee tep ter tes tet tpc tpe tpp tpr tps tpt trc tre trp trr trs trt tsc tse tsp tsr tss tst ttc tte ttp ttr tts ttt

cccc cccp cccs ccee ccpe ccpp ccpr ccps ccrc ccre ccrp ccrs ccrt ccsp ccss ccst cctc cctt cec- cece cecp cecs cect ceec cees cepc cepe cepp cepr ceps cept cer- cerc cere cerp cers cert cesc cese cesp cesr cess cest cet- cete cetp cets cpce cpcs cpep cper cpps cpre cprs cprt cpsc cpsr cptp cptr cpts crcc crce crcr cre- crec cree crep cres cret crpc crps crrt crsp crss crst crtc crtp crts cscc csce cscr cscs csec csee csep cser cset cspc cspe csps cspt csrc csrs csse cssr cstc cstr csts ctcp ctec ctep ctpp ctps ctrc ctrp ctrs ctsc ctss ctts eccc ecce ecct eces ecpp ecrc ecrr ecsc ecse ecsp ecss ect- ectc ects eecs eeee eees eeps eerc eers eese eetc eete eets epcc epec epee eper epes eppc eppp epps eprp eprs epsc epsp epss epte ercc erce ercp erec erer eres eret erpe erps errc erre errs erse erst erts esce escr escs esee eser eses eset espc espe espp esps esse essp esst estc este estp estr ests etcc etcs etec etee eter etes etre ette pccc pcce pccs pcep pcer pcpp pcps pcrc pcre pcse pcte pcts pece pecr pecs pect peec peep peer pees peet pepe peps per- perc pere perp perr pers pert pese pess pest pete petr pets pett ppcc ppcs pper pppp ppps pprc ppss ppts pptt prcc prcp prcs pre- prec pree prep pres pret prps prrs prsc prse prss prtc prtp prtr psec pspp pspr psps psrp pssc psse psst psts ptcc pter pttc rccc rccs rcep rcet rcps rcpt rcsc rcss rctc rcts recc rece recp recr recs rect reep rees reet repe repp repr reps rept rere rers rert rese resp ress rest rete retr rets rett rpcs rpet rpps rpts rrrr rrsp rscc rscs rsee rsps rsre rstp rsts rtcc rtce rtee rtes rtps rtss rttp rtts sccc scce sccp sccs scct scec scee scep scer scet scpe scps scpt scr- scrc scre scrs scsc scsr scst sctc sctr scts se-c se-e se-s se-t sec- secc sece secr secs sect seec seep seer sees seet sepe sepp sepr seps sept serc sere serp serr sers sert sesc sese sess sest set- setc sete sets sett spcc spcs spec spee sper spes spet spps sprs spse spsp spss spst sptc sptr spts srcc srct srec sres srpc srps srpt srsp srtp srtr sscc ssce sscp sscs ssec ssee ssep sses sset sspc sspe ssps sspt ssrc ssrs sssc ssss sstc sstp ssts stcc stcp stcs stec stee step ster stes stet stpp stps strc stre strs stss sttc sttr tccc tcep tctc tcts tecr tecs tect teec teer tees teet tepe tepp ter- terc tere terp terr ters tesc tese tesp tess test tete tetr tets tett tpcp tpcs tper tppp tppr tprs tpsc tpte tptp tptr trcc tre- trec tree tres tret trpc trpe trpp trps trst trtc trte trtr tscc tscp tsec tses tset tsps tspt tsse tssr tsst tstc tsts ttcp tter ttss tttt

-tree c-p-c c-tec ccccc ccett ceere ceese cepes cepet cerc- cerce cercs cerec cerer ceres ceret cerps cerre cerrs cerse cerss certe certs cesce cescr cesse ceste cests cetes cette cpctc cpesc crece creep creer crees crepe crept cresc crese cress crest crete crres csere csprs cstcc cteep ctree cttee e-cps ecser ecspp eeeee eepee epees eperc eppes erecs erect erept erere erest erets erres erses erste ersts erte erter ertes esces escrt esect esere esp-r espec esper espre esser esses essse estce estee estep ester estes estet estre etest etete etree etres etter ettes p-rep pccts pcept pcert pctct peces peece peeps peere peers peert peese peest peete peets pepee pepes peppe pepst pept- perce percs perec perer peres peret perps perre perse persp perst perte pesce peses pesse peste pests peter petes petr- petre pette petts ppers prece prees preps prese press prest prete pssst pssts pter- ptere pters ptprc ptpre ptprr ptprs ptprt rcpsc rcpts recce recep recet recpt rect- recte rects reece reecs reepe reere reese reest repec repet reppe repps reprt repts rere- reree reres reret resee reses reset resse reste restr rests retee reter retes rette retts rrsps rspec s-tec scere scert screc scree scrsp scter sctrs secre secte sects seece seeps seere seers seese seest seete sepet sept- septs serce serec serer seres seret serpe serps serre serse serss sert- serte serts sesce seser seses sesse seste setec setee seter setse sette setts specc spece specs spect speer spees speet spere sperr spert spete spets spree spres spret srpce sssss steep steer stees steet step- stepe