-er c-- ccc ccd cce ccf cco ccr ccs cct cdc cdd cde cdf cdo cdr cds cdt ce- cec ced cee cef ceo cer ces cet cfc cfd cfe cff cfo cfr cfs cft co- coc cod coe cof coo cor cos cot crc crd cre crf cro crr crs crt csc csd cse csf cso csr css cst ctc ctd cte ctf cto ctr cts ctt dcc dcd dce dcf dco dcr dcs dct ddc ddd dde ddf ddo ddr dds ddt de- dec ded dee def deo der des det dfc dfd dfe dff dfo dfr dfs dft doc dod doe dof doo dor dos dot drc drd dre dro drr drs drt dsc dsd dse dsf dso dsr dss dst dtc dtd dte dtf dto dtr dts dtt ec- ecc ecd ece ecf eco ecr ecs ect ed- edc edd ede edf edo edr eds edt eec eed eee eef eeo eer ees eet ef- efc efd efe eff efo efr efs eft eo- eoc eod eoe eof eoo eor eos eot erc erd ere erf ero err ers ert es- esc esd ese esf eso esr ess est etc etd ete etf eto etr ets ett fcc fcd fce fcf fco fcr fcs fct fdc fdd fde fdf fdo fdr fds fdt fec fed fee fef feo fer fes fet ffc ffd ffe fff ffo ffr ffs fft foc foe fof foo for fos fot frc frd fre frf fro frr frs frt fsc fsd fse fsf fso fsr fss fst ftc ftd fte ftf fto ftr fts ftt oc- occ ocd ocf oco ocr ocs oct odc odd ode odf odo odr ods odt oec oed oee oef oeo oer oes oet of- ofc ofd ofe off ofo ofr ofs oft oo- ooc ood oof ooo oor oos oot or- orc ord ore orf oro orr ors ort os- osc osd ose osf oso osr oss ost ot- otc otd ote otf oto otr ots ott rcc rcd rce rcf rco rcr rcs rct rdc rdd rde rdf rdo rdr rds rdt re- rec red ree ref reo rer res ret rfc rfd rfe rff rfo rfr rfs rft roc rod roe rof roo ror ros rot rrc rrd rrf rrr rrs rrt rsc rsd rse rsf rso rsr rss rst rtc rtd rte rtf rto rtr rts rtt scc scd sce scf sco scr scs sct sdc sdd sde sdf sdo sdr sds sdt se- sec sed see sef seo ser ses set sfc sfd sfe sff sfo sfr sfs sft soc sod soe sof soo sor sos sot sr- src srd sre srf sro srr srs srt ss- ssc ssd sse ssf sso ssr sss sst stc std ste stf sto str sts stt tcc tcd tce tcf tco tcr tcs tct tdc tdd tde tdf tdo tdr tds tdt te- tec ted tee tef teo ter tes tet tfc tfd tfe tff tfo tfr tfs tft to- toc tod toe tof too tor tos tot trc trd tre trf tro trr trs trt tsc tsd tse tsf tso tsr tss tst ttc ttd tte ttf tto ttr tts ttt

-ose c-cd cccc cccf cccs ccdc ccdf ccdr ccds cced ccee ccfc ccfd ccff ccoc ccod ccrc ccre ccrf ccrs ccrt ccsd ccsf ccss ccst cctc cctt cd-e cd-r cdcs cddr cdec cdef cder cdes cdfe cdfs cdos cdot cdre cdrs cdss cec- cece ceco cecs cect cedd cede cedo cedt ceec cees cef- cefc ceor ceos cer- cerc cerd cere cerf cero cers cert cesc cese cesr cess cest cet- cete ceto cets cfcf cfco cfcs cfds cffr cfor cfos cfre cfrt cfse cftc cfte cftr coce coco coct codd code cods coed coes cofc cofe coff cofs coft cood coof coos coot cor- corc cord core corf coro corr cors cort cosc cose coso coss cost cotc cote coto cots cott crcc crce crcr crdc cre- crec cred cree creo cres cret crfc crfs croc crod croe croo cror crot crrt crss crst crtc crtf crts cscc cscd csce cscf csco cscr cscs csdr csec csee cser cset csfc csfr csor csos csot csrc csrd csrs cssd csse cssr cstc cstd csto cstr csts ctcf ctec ctfc ctfo ctfs ctor ctos ctot ctrc ctrs ctsc ctss ctts dccc dccs dcct dcds dcfc dcfs dcos dcsc dcss dctc dcts dddd ddes ddoc ddot ddrc ddre ddss ddts dec- decc decd dece deco decs dect dedd dede dedo deed deef deer dees deet defe deff defo defs deft deor deos der- derc dere derf dero derr ders des- desc dese deso dess dest dete deto detr dets dfcc dfco dfcs dfds dfdt dfer dfoe dfrf dftr dfts doce doco docs doct dod- dodd dode dodo dods doer does doff dood doof door doos doot dorc dord dore dorf doro dorr dors dort dose doso doss dost dotd dote doto dots dott dred dree dref dres dret drfc drod drof drot drrs dscc dscr dscs dsdr dsfc dsos dsrc dsrr dssc dsst dstc dsto dsts dtcc dted dtfc dtor dtot dtss eccc ecce ecco ecct ecdc ecdf eced ecef eces ecfc ecfr ecfs eco- ecod ecos ecot ecrc ecrf ecrr ecsc ecse ecss ect- ectc ectf ecto ects eddc edde eddo edds ede- eder edes edoc edod edos edss edts eecs eede eeee eees eefe eeoc eerc eero eers eese eetc eete eets efco efeo efes efet effs efor eft- efts eocd eode eoes eore eost eotc eotd eoto eots ercc erce erde erdf erds erec ered erer eres eret erfc erfs erft eroc erod eroe eroo eros errc erre erro errs erse erso erst erts esce esco escr escs esds esee eseo eser eses eset esfs eso- esos esrd esse esso esst estc estd este esto estr ests etcc etco etcs etds etec etee eter etes etfc etfe etoe etos etre etro ette etto fccf fcds fces fcot fcsc fcst fcto fdoc fdos fdot fdst fdtc fece fect fede feds feed feer