-er c-- ccc ccd cce ccf cck cco ccr cct cdc cdd cde cdf cdk cdo cdr cdt ce- cec ced cee cef cek ceo cer cet cfc cfd cfe cff cfk cfo cfr cft ckc ckd cko ckt co- coc cod coe cof cok coo cor cot crc crd cre crf crk cro crr crt ctc ctd cte ctf ctk cto ctr ctt dcc dcd dce dcf dck dco dcr dct ddc ddd dde ddf ddk ddo ddr ddt de- dec ded dee def dek deo der det dfc dfd dfe dff dfk dfo dfr dft dkc dke dkk dko dkr dkt doc dod doe dof dok doo dor dot drc drd dre drk dro drr drt dtc dtd dte dtf dtk dto dtr dtt ec- ecc ecd ece ecf eck eco ecr ect ed- edc edd ede edf edk edo edr edt eec eed eee eef eek eeo eer eet ef- efc efd efe eff efo efr eft ekc ekd eke ekf eko ekr ekt eo- eoc eod eoe eof eok eoo eor eot erc erd ere erf erk ero err ert etc etd ete etf etk eto etr ett fcc fcd fce fcf fck fco fcr fct fdc fdd fde fdf fdk fdo fdr fdt fec fed fee fef fek feo fer fet ffc ffd ffe fff ffk ffo ffr fft fkc fkf fkk fkt foc foe fof fok foo for fot frc frd fre frf frk fro frr frt ftc ftd fte ftf ftk fto ftr ftt k-t kcc kcd kce kck kcr kct kdc kde kdf kdk kdo kdr kdt ke- kec ked kee kef kek keo ker ket kfc kfd kff kfo kkc kke kkk kkr kkt koc kod koe kof kok koo kor kot krc krd krf krk kro krr krt ktc kte ktf ktk kto ktr ktt oc- occ ocd ocf ock oco ocr oct odc odd ode odf odo odr odt oec oed oee oef oeo oer oet of- ofc ofd ofe off ofo ofr oft okc okd oke okk oko okr oo- ooc ood oof ook ooo oor oot or- orc ord ore orf ork oro orr ort ot- otc otd ote otf otk oto otr ott rcc rcd rce rcf rco rcr rct rdc rdd rde rdf rdo rdr rdt re- rec red ree ref rek reo rer ret rfc rfd rfe rff rfk rfo rfr rft rkc rke rkf rkk rko rkt roc rod roe rof rok roo ror rot rrc rrd rrf rrk rrr rrt rtc rtd rte rtf rtk rto rtr rtt tcc tcd tce tcf tck tco tcr tct tdc tdd tde tdf tdk tdo tdr tdt te- tec ted tee tef tek teo ter tet tfc tfd tfe tff tfk tfo tfr tft tkc tke tkk tko tkr tkt to- toc tod toe tof tok too tor tot trc trd tre trf trk tro trr trt ttc ttd tte ttf ttk tto ttr ttt

c-cd cccc cccf ccdc ccdf ccdr cced ccee ccfc ccfd ccff ccoc ccod ccrc ccre ccrf ccrt cctc cctt cd-e cd-r cddr cdec cdef cder cdfe cdot cdre cec- cece ceco cect cedd cede cedo cedt ceec cef- cefc ceke ceor cer- cerc cerd cere cerf cero cert cet- cete ceto cfcf cfco cffr cfor cfre cfrt cftc cfte cftk cftr ckck ckco ckdo cker ckfr ckoc ckoo ckor ckot ckrc ckrd coce cock coco coct codd code coed cofc cofe coff coft cok- coke coko cood coof cook coot cor- corc cord core corf cork coro corr cort cotc cote coto cott crcc crce crcr crdc cre- crec cred cree creo cret crfc crkc croc crod croe crok croo cror crot crrt crtc crtf ctcf ctec ctfc ctfo ctor ctot ctrc dccc dcct dcfc dcrk dctc dddd ddoc ddot ddrc ddre dec- decc decd dece deck deco dect dedd dede dedo deed deef deek deer deet defe deff defo deft dek- deke deor der- derc dere derf derk dero derr dete detk deto detr dfcc dfco dfdt dfer dfoe dfrf dftr dkdc doce dock doco doct dod- dodd dode dodo doek doer doff doke doko dood doof dook door doot dorc dord dore dorf dork doro dorr dort dotd dote dotk doto dott dred dree dref drek dret drfc drod drof drot dtcc dted dtek dtfc dtor dtot eccc ecce ecco ecct ecdc ecdf eced ecef ecfc ecfr ecko eco- ecod ecot ecrc ecrf ecrr ect- ectc ectf ecto eddc edde eddo ede- eder edoc edod eede eeee eefe eeke eeoc eerc eero eetc eete efco efeo efet efke efor eft- ekco eked ekek eker eket ekfc eocd eode eore eotc eotd eoto ercc erce erde erdf erec ered erer eret erfc erft erke eroc erod eroe eroo errc erre erro etcc etco etec etee eter etfc etfe etoe etok etre etro ette etto f--k fccf fcot fcto fdoc fdot fdtc fece feck fect fede feed feek feer feet fefc fefe feff fefo feke feko feod feof ferc ferd fere ferk fero ferr fert fete fetr fett ffcc ffee ffff ffrr fftf foce fock foco fode foed foer fofo foke food foof fook foot for- ford fore fork foro forr fort fote foto fott frcc fred free freo fret frfc froe frot ft-c ftcd fter ftfc kccc kccd kcck kccr kcct kcdc kcdd kcdr kcec kced kcee kceo kcet kcfc kcfd kcfo kcft kckc kckf kckk kcko kckr kcoe kcof kcor kcot kcrc kcro kcrr kcrt kctc kcte kcto kdcc kdcd kdce kdco kdcr kddc kddd kddf kddk kddr kdec kdef kdet kdfc kdfo kdfr kdft kdkd kdkk kdko kdkr kdkt kdoc kdoe kdok kdot kdrf kdro kdtd kdtr keck keco kecr kedc kedd kede kedo kedr kedt keed keef keek keer keet kefc keff kefr keft kekc keke keko keok ker- kerc kere kerf kerk kero kerr kert ket- ketc ketd kete ketf ketk keto ketr kett kfcd kfcf kfco kfcr kfed kfer kfff kffk kfok kfoo kfor kfrc kfrd kfre kfro kfrr kftc kfte kftk kftt kkcd