-er -ey c-- ccc cce ccf cck ccr cct ccu ce- cec cee cef cek cer cet ceu cey cfc cfe cff cfk cfr cft cfu ckc ckt cky crc cre crf crk crr crt cru cry ctc cte ctf ctk ctr ctt ctu cty cuc cue cuf cuk cur cut cuu cuy cyc cye cyf cyk cyr cyt ec- ecc ece ecf eck ecr ect ecu eec eee eef eek eer eet eey ef- efc efe eff efr eft ekc eke ekf ekr ekt eku eky erc ere erf erk err ert eru ery etc ete etf etk etr ett etu ety eu- euc eue euf eur eut eyc eye eyr eyt fcc fce fcf fck fcr fct fcu fcy fec fee fef fek fer fet feu fey ffc ffe fff ffk ffr fft ffu ffy fkc fkf fkk fkt frc fre frf frk frr frt fru fry ftc fte ftf ftk ftr ftt ftu fty fue fuf fuk fur fut fuu fy- fyc fye fyk k-t kcc kce kck kcr kct kcu ke- kec kee kef kek ker ket key kfc kff kfu kkc kke kkk kkr kkt kku kky krc krf krk krr krt kru kry ktc kte ktf ktk ktr ktt ktu kuc kue kuk kur kut kuu kuy kyc kye kyr kyt kyu rcc rce rcf rcr rct rcu re- rec ree ref rek rer ret reu rey rfc rfe rff rfk rfr rft rfu rkc rke rkf rkk rkt rku rky rrc rrf rrk rrr rrt rru rtc rte rtf rtk rtr rtt rtu rty ruc rue ruf ruk rur rut ruu ruy ry- ryc rye ryf ryk ryr ryu ryy tcc tce tcf tck tcr tct tcu te- tec tee tef tek ter tet teu tey tfc tfe tff tfk tfr tft tfu tkc tke tkk tkr tkt tky trc tre trf trk trr trt tru try ttc tte ttf ttk ttr ttt ttu tty tuc tue tuf tuk tur tut tuu tuy tyc tye tyf tyr tyt ucc uce ucf uck ucr uct ucu uec uee uef uer uet uey ufc ufe uff ufr uft ufu ukc uke ukf ukk ukr uku ur- urc ure urf urk urr urt uru ury utc ute utf utk utr utt utu uty uuc uue uur uut uuu uyc uyu ycc yce ycf ycu ycy yec yee yef yek yer yet yey yfc yfe yff yfr yft yfu ykk yrc yre yrf yrt yru ytc yte ytf ytk ytr ytt ytu yue yuk yur yut yuu yuy yyc yye yyf yyt yyu yyy