-er -ic c-- ccc cce ccf cci cck ccr ccs ce- cec cee cef cei cek cer ces cfc cfe cff cfi cfk cfr cfs ci- cic cie cif cii cik cir cis ckc cki cks crc cre crf cri crk crr crs csc cse csf csi csk csr css ec- ecc ece ecf eci eck ecr ecs eec eee eef eek eer ees ef- efc efe eff efi efr efs eic eie eif eii eik eir eis ekc eke ekf eki ekr eks erc ere erf eri erk err ers es- esc ese esf esi esk esr ess fcc fce fcf fci fck fcr fcs fec fee fef fei fek fer fes ffc ffe fff ffi ffk ffr ffs fic fie fif fii fik fir fis fkc fkf fki fkk frc fre frf fri frk frr frs fsc fse fsf fsi fsk fsr fss i-f icc ice icf ici ick icr ics ie- iec iee ief iei iek ier ies ifc ife iff ifi ifr ifs iic iie iif iii iir iis ikc ike ikf iki ikk ikr iks ir- irc ire irf iri irk irr irs is- isc ise isf isi isk isr iss kcc kce kci kck kcr kcs ke- kec kee kef kei kek ker kes kfc kff kfi kfs kic kie kif kii kik kir kis kkc kke kki kkk kkr kks krc krf kri krk krr krs ksc kse ksf ksi ksk ksr kss rcc rce rcf rci rcr rcs re- rec ree ref rei rek rer res rfc rfe rff rfi rfk rfr rfs ric rie rif rii rik rir ris rkc rke rkf rkk rks rrc rrf rri rrk rrr rrs rsc rse rsf rsi rsk rsr rss scc sce scf sci sck scr scs se- sec see sef sei sek ser ses sfc sfe sff sfi sfk sfr sfs sic sie sif sii sik sir sis sk- skc ske skf ski skk skr sks sr- src sre srf sri srk srr srs ss- ssc sse ssf ssi ssk ssr sss

cccc cccf ccci cccs ccee ccfc ccff ccfi ccic ccii ccir ccis ccrc ccre ccrf ccri ccrs ccsf ccsi ccss cec- cece ceci cecs ceec cees cef- cefc ceke cer- cerc cere cerf ceri cers cesc cese cesi cesr cess cfcf cfcs cffr cfre cfse cfsi cicc cici cicr cics ciee cier cies cife ciff cifs ciii ciis cikr circ cire ciri cirk cirr cirs cis- cisc cise cisk cisr ciss ckck ckcs cker ckfi ckfr ckrc crcc crce crcr cre- crec cree crei cres crfc crfs cric crie crif crik cris crkc crss cscc csce cscf csci cscr cscs csec csee cser csfc csfr csik csir csis csks csrc csrs csse cssr eccc ecce ecci ecef eces ecfc ecfr ecfs ecis ecks ecrc ecrf ecri ecrr ecsc ecse ecss eecs eeee eees eefe eeke eeks eerc eers eese eesi eesk efes effi effs efic efik efke efsi eick eics eiec eiei eier eies eifs eike eiki eiks eire eirs eise eisk eiss ekek eker ekes ekfc ekis ekki eksi ercc erce erec erei erer eres erfc erfs eric erie erik eris erke erki erks errc erre errs erse ersi esce esci escr escs esee esek eser eses esfs esie esik esis eske esks esri esse essi f--k fccf fces fcic fcii fcsc fece feck feek feer fees fefc fefe feff fefi feie feir feis feke ferc fere ferk ferr fers fese fess ffcc ffee ffff ffii ffrr ffss ficc fice fick fics fiec fief fier fies fifc fife fiff fifi fiii fike fiki fire firk firs fisc fise fisi fisk fiss frcc free frei fres frfc fric frie frik fris frsc fscc fsck fsec fsfi fssc fssf iccc iccf icci iccr iccs icec icee icef icer ices icis icke icks icrc icre icrf icrr icrs icsc icse icsi icsr icss iecc ieie iere ieri iers iesc iesi iesr ifer ifes ific ifis ifrf ifri ifsc iies iiie iiii iiis iirc iirs iisc iisi iisr ikee iker ikes ikki ikri ircc ircs iree irer ires irfe iri- iric irie iris irki irks irrc irre irri irrs irse irsf iscc isci iscr iscs isec isee iser ises isfc isic isie isis iskf isri issc isse issf issi issr isss k-ci kccc kcci kcck kccr kcec kcee kcei kcfc kcfi kcic kcie kcif kcii kcir kcis kckc kckf kckk kckr kcrc kcri kcrr kcrs kcsc kcse kcsf kcsi kcsr kcss keck kecr keef keek keer kees kefc keff kefr kefs keif keii keik keir keis kekc keke keki keks ker- kerc kere kerf keri kerk kerr kers kesc kesi kesk kesr kess kfcf kfcr kfcs kfer kfff kffk kfir kfis kfrc kfre kfri kfrr kfrs kfse kfsi kfsk kfsr kicc kice kick kicr kics kief kier kies kife kiff kifr kifs kiic kiii kiik kiis kikc kikf kiki kikk kikr kirc kirf kiri kirk kirr kirs kisc kise kisf kisi kisk kisr kiss kkci kkck kkcr kkcs kkfi kkfr kkfs kkic kkik kkkk kkrc kkre kkrf kkrk kkrr kkrs kkse kksf kksi kksr kkss krcc krce krci krcs krec kree kref krei krek kres krfc krfe krff krfs krik kris krkc krke krki krkk krkr krks krrc krre krrf krri krrk krrr krrs krsc krse krsf krsk krsr krss ksce ksci ksck kscr kscs ksec ksee ksei ksek kser ksfc ksfe ksfi ksfr ksif ksii ksik ksir ksis kske kskf kskk kskr ksks ksrf ksrr ksrs ksse kssi kssr ksss rccc rccs rcfc rcic rcis rcsc rcsi rcss recc rece reci reck recr recs reef reek rees refe reff refi refr refs reif reii reik reir reis reke reki reks rere reri rers rese resi ress rfef rffc rfic ricc rice rick rics rief riek rier ries rife riff rifs riif riis rike riki rikk rire riri rirs risc rise risi risk riss rkkf rkss rrfc rrif rrrr rscc rscs rsee rsfc rsis rsre s-ic s-ii sccc scce sccs scec scee scer scfc scfe scfi sci- scic scie scif scir scis sck- scr-