-er c-- ccc ccd cce ccf cck cco ccr ccs cdc cdd cde cdf cdk cdo cdr cds ce- cec ced cee cef cek ceo cer ces cfc cfd cfe cff cfk cfo cfr cfs ckc ckd cko cks co- coc cod coe cof cok coo cor cos crc crd cre crf crk cro crr crs csc csd cse csf csk cso csr css dcc dcd dce dcf dck dco dcr dcs ddc ddd dde ddf ddk ddo ddr dds de- dec ded dee def dek deo der des dfc dfd dfe dff dfk dfo dfr dfs dkc dke dkk dko dkr dks doc dod doe dof dok doo dor dos drc drd dre drk dro drr drs dsc dsd dse dsf dsk dso dsr dss ec- ecc ecd ece ecf eck eco ecr ecs ed- edc edd ede edf edk edo edr eds eec eed eee eef eek eeo eer ees ef- efc efd efe eff efo efr efs ekc ekd eke ekf eko ekr eks eo- eoc eod eoe eof eok eoo eor eos erc erd ere erf erk ero err ers es- esc esd ese esf esk eso esr ess fcc fcd fce fcf fck fco fcr fcs fdc fdd fde fdf fdk fdo fdr fds fec fed fee fef fek feo fer fes ffc ffd ffe fff ffk ffo ffr ffs fkc fkf fkk foc foe fof fok foo for fos frc frd fre frf frk fro frr frs fsc fsd fse fsf fsk fso fsr fss kcc kcd kce kck kcr kcs kdc kde kdf kdk kdo kdr kds ke- kec ked kee kef kek keo ker kes kfc kfd kff kfo kfs kkc kke kkk kkr kks koc kod koe kof kok koo kor kos krc krd krf krk kro krr krs ksc ksd kse ksf ksk kso ksr kss oc- occ ocd ocf ock oco ocr ocs odc odd ode odf odo odr ods oec oed oee oef oeo oer oes of- ofc ofd ofe off ofo ofr ofs okc okd oke okk oko okr oks oo- ooc ood oof ook ooo oor oos or- orc ord ore orf ork oro orr ors os- osc osd ose osf osk oso osr oss rcc rcd rce rcf rco rcr rcs rdc rdd rde rdf rdo rdr rds re- rec red ree ref rek reo rer res rfc rfd rfe rff rfk rfo rfr rfs rkc rke rkf rkk rko rks roc rod roe rof rok roo ror ros rrc rrd rrf rrk rrr rrs rsc rsd rse rsf rsk rso rsr rss scc scd sce scf sck sco scr scs sdc sdd sde sdf sdk sdo sdr sds se- sec sed see sef sek seo ser ses sfc sfd sfe sff sfk sfo sfr sfs sk- skc skd ske skf skk sko skr sks soc sod soe sof sok soo sor sos sr- src srd sre srf srk sro srr srs ss- ssc ssd sse ssf ssk sso ssr sss

-ose c-cd cccc cccf cccs ccdc ccdf ccdr ccds cced ccee ccfc ccfd ccff ccoc ccod ccrc ccre ccrf ccrs ccsd ccsf ccss cd-e cd-r cdcs cddr cdec cdef cder cdes cdfe cdfs cdos cdre cdrs cdss cec- cece ceco cecs cedd cede cedo ceec cees cef- cefc ceke ceor ceos cer- cerc cerd cere cerf cero cers cesc cese cesr cess cfcf cfco cfcs cfds cffr cfor cfos cfre cfse ckck ckco ckcs ckdo cker ckfr ckoc ckoo ckor ckos ckrc ckrd ckso coce cock coco codd code cods coed coes cofc cofe coff cofs cok- coke coko cood coof cook coos cor- corc cord core corf cork coro corr cors cosc cose coso coss crcc crce crcr crdc cre- crec cred cree creo cres crfc crfs crkc croc crod croe crok croo cror crss cscc cscd csce cscf csco cscr cscs csdr csec csee cser csfc csfr csks csor csos csrc csrd csrs cssd csse cssr dccc dccs dcds dcfc dcfs dcos dcrk dcsc dcss dddd ddes ddoc ddrc ddre ddss dec- decc decd dece deck deco decs dedd dede dedo deed deef deek deer dees defe deff defo defs dek- deke deks deor deos der- derc dere derf derk dero derr ders des- desc dese desk deso dess dfcc dfco dfcs dfds dfer dfoe dfrf dkdc doce dock doco docs dod- dodd dode dodo dods doek doer does doff doke doko dood doof dook door doos dorc dord dore dorf dork doro dorr dors dose dosk doso doss dred dree dref drek dres drfc drod drof drrs dscc dscr dscs dsdr dsfc dsos dsrc dsrr dssc eccc ecce ecco ecdc ecdf eced ecef eces ecfc ecfr ecfs ecko ecks eco- ecod ecos ecrc ecrf ecrr ecsc ecse ecss eddc edde eddo edds ede- eder edes edoc edod edos edss eecs eede eeee eees eefe eeke eeks eeoc eerc eero eers eese eesk efco efeo efes effs efke efor ekco eked ekek eker ekes ekfc ekos eocd eode eoes eore ercc erce erde erdf erds erec ered erer eres erfc erfs erke erks eroc erod eroe eroo eros errc erre erro errs erse erso esce esco escr escs esds esee esek eseo eser eses esfs eske esko esks eso- esok esos esrd esse esso f--k fccf fcds fces fcsc fdoc fdos fece feck fede feds feed feek feer fees fefc fefe feff fefo feke feko feod feof ferc ferd fere ferk fero ferr fers fese fess ffcc ffee ffff ffrr ffss foce fock foco focs fode foed foer foes fofo foke food foof fook foos for- ford fore fork foro forr fors foso foss frcc fred free freo fres frfc froe fros frsc frso fscc fsck fsec fsfo fssc fssf k-os kccc kccd kcck kccr kcdc kcdd kcdr kcds kcec kced kcee kceo kcfc kcfd kcfo kckc kckf kckk kcko kckr kcoe kcof kcor kcos kcrc kcro kcrr kcrs kcsc kcsd kcse kcsf kcsr kcss kdcc kdcd kdce kdco kdcr kddc kddd kddf kddk kddr kdec kdef kdfc kdfo kdfr kdkd kdkk