-er c-- ccc cce ccf cck cco ccr ccs ce- cec cee cef cek ceo cer ces cfc cfe cff cfk cfo cfr cfs ckc cko cks co- coc coe cof cok coo cor cos crc cre crf crk cro crr crs csc cse csf csk cso csr css ec- ecc ece ecf eck eco ecr ecs eec eee eef eek eeo eer ees ef- efc efe eff efo efr efs ekc eke ekf eko ekr eks eo- eoc eoe eof eok eoo eor eos erc ere erf erk ero err ers es- esc ese esf esk eso esr ess fcc fce fcf fck fco fcr fcs fec fee fef fek feo fer fes ffc ffe fff ffk ffo ffr ffs fkc fkf fkk foc foe fof fok foo for fos frc fre frf frk fro frr frs fsc fse fsf fsk fso fsr fss kcc kce kck kcr kcs ke- kec kee kef kek keo ker kes kfc kff kfo kfs kkc kke kkk kkr kks koc koe kof kok koo kor kos krc krf krk kro krr krs ksc kse ksf ksk kso ksr kss oc- occ ocf ock oco ocr ocs oec oee oef oeo oer oes of- ofc ofe off ofo ofr ofs okc oke okk oko okr oks oo- ooc oof ook ooo oor oos or- orc ore orf ork oro orr ors os- osc ose osf osk oso osr oss rcc rce rcf rco rcr rcs re- rec ree ref rek reo rer res rfc rfe rff rfk rfo rfr rfs rkc rke rkf rkk rko rks roc roe rof rok roo ror ros rrc rrf rrk rrr rrs rsc rse rsf rsk rso rsr rss scc sce scf sck sco scr scs se- sec see sef sek seo ser ses sfc sfe sff sfk sfo sfr sfs sk- skc ske skf skk sko skr sks soc soe sof sok soo sor sos sr- src sre srf srk sro srr srs ss- ssc sse ssf ssk sso ssr sss

-ose cccc cccf cccs ccee ccfc ccff ccoc ccrc ccre ccrf ccrs ccsf ccss cec- cece ceco cecs ceec cees cef- cefc ceke ceor ceos cer- cerc cere cerf cero cers cesc cese cesr cess cfcf cfco cfcs cffr cfor cfos cfre cfse ckck ckco ckcs cker ckfr ckoc ckoo ckor ckos ckrc ckso coce cock coco coes cofc cofe coff cofs cok- coke coko coof cook coos cor- corc core corf cork coro corr cors cosc cose coso coss crcc crce crcr cre- crec cree creo cres crfc crfs crkc croc croe crok croo cror crss cscc csce cscf csco cscr cscs csec csee cser csfc csfr csks csor csos csrc csrs csse cssr eccc ecce ecco ecef eces ecfc ecfr ecfs ecko ecks eco- ecos ecrc ecrf ecrr ecsc ecse ecss eecs eeee eees eefe eeke eeks eeoc eerc eero eers eese eesk efco efeo efes effs efke efor ekco ekek eker ekes ekfc ekos eoes eore ercc erce erec erer eres erfc erfs erke erks eroc eroe eroo eros errc erre erro errs erse erso esce esco escr escs esee esek eseo eser eses esfs eske esko esks eso- esok esos esse esso f--k fccf fces fcsc fece feck feek feer fees fefc fefe feff fefo feke feko feof ferc fere ferk fero ferr fers fese fess ffcc ffee ffff ffrr ffss foce fock foco focs foer foes fofo foke foof fook foos for- fore fork foro forr fors foso foss frcc free freo fres frfc froe fros frsc frso fscc fsck fsec fsfo fssc fssf k-os kccc kcck kccr kcec kcee kceo kcfc kcfo kckc kckf kckk kcko kckr kcoe kcof kcor kcos kcrc kcro kcrr kcrs kcsc kcse kcsf kcsr kcss keck keco kecr keef keek keer kees kefc keff kefr kefs kekc keke keko keks keok keos ker- kerc kere kerf kerk kero kerr kers kesc kesk keso kesr kess kfcf kfco kfcr kfcs kfer kfff kffk kfok kfoo kfor kfrc kfre kfro kfrr kfrs kfse kfsk kfsr kkck kkco kkcr kkcs kkfr kkfs kkkk kkoo kkor kkrc kkre kkrf kkrk kkro kkrr kkrs kkse kksf kksr kkss kocf kock kocs koes kofc kofe koff kofk kofo kokc koke kokf kokk koko kokr koks kooc kook kooo koor koos korc kore korf kork koro korr kors kos- kosc kose kosf koso kosr koss krcc krce krco krcs krec kree kref krek kreo kres krfc krfe krff krfo krfs krkc krke krkk krko krkr krks kroc kroe krof krok kroo kror kros krrc krre krrf krrk krro krrr krrs krsc krse krsf krsk krsr krss ksce ksck ksco kscr kscs ksec ksee ksek kseo kser ksfc ksfe ksfo ksfr kske kskf kskk ksko kskr ksks ksoc ksof ksok ksoo ksor ksos ksrf ksro ksrr ksrs ksse ksso kssr ksss o-eo occc oce ocee ocef ocke ocks ocos ocre ocro ocrr ocrs oec- oecc oeec oere oers oese ofcr ofek ofer off- offc offe offo offr offs ofor ofre oker okes okko okok okor okre okro okso oocr ooer ooes ooff oofs oooo ooos oore oose orce orco orcs ore- orec orek oreo orer ores orfe orff orfs orke orko oro- oroe orof orok oror oros orro orrs orse orsk orso oscc osce osco osec osee osek oser oses osoo osor osos osro osse osso rccc rccs rcfc rcos rcsc rcss recc rece reck recr recs reef reek rees refe reff refr refs reke reko reks reof reos rere rero rers rese reso ress rfef rffc rkkf rkos rkss rocc roce rock roco rocs roer roes rofc rofe roff rofo roke rokk roko rokr roks roof rook roor roos rorc rore rork roro rosc rose roso ross rrfc rrrr rscc rscs rsee rsfc rsos rsre s-os sccc scce sccs scec scee scer scfc scfe sck- scok scoo scor scr- scrc scre scrs scsc scso scsr se-c se-e se-f se-k se-o se-s sec- secc sece seck seco secr secs seec seef seek seer sees seff seke sekk seko seoc seok serc sere