-er -ey -ic c-- ccc cce cci cck cco ccr ccs ccz ce- cec cee cei cek ceo cer ces cey cez ci- cic cie cii cik cio cir cis ckc cki cko cks cky co- coc coe coi cok coo cor cos coy coz crc cre cri crk cro crr crs cry crz csc cse csi csk cso csr css csy csz cyc cye cyk cyo cyr cys cz- czc cze czk czo ec- ecc ece eci eck eco ecr ecs eec eee eek eeo eer ees eey eic eie eii eik eio eir eis ekc eke eki eko ekr eks eky eo- eoc eoe eoi eok eoo eor eos erc ere eri erk ero err ers ery erz es- esc ese esi esk eso esr ess esy eyc eye eyo eyr eys eze ezo ezr ezs ezz icc ice ici ick ico icr ics icy icz ie- iec iee iei iek ier ies iey iic iie iii iio iir iis ikc ike iki ikk iko ikr iks io- ioc ioe ioi ioo ior ios ir- irc ire iri irk iro irr irs iry is- isc ise isi isk iso isr iss isy iyc iye iyo iyr iys iyy ize izi izo izy izz k-z kcc kce kci kck kcr kcs ke- kec kee kei kek keo ker kes key kez kic kie kii kik kio kir kis kiz kkc kke kki kkk kkr kks kky koc koe koi kok koo kor kos koy koz krc kri krk kro krr krs kry ksc kse ksi ksk kso ksr kss kyc kye kyo kyr kys kyz kzo kzy o-i oc- occ oci ock oco ocr ocs ocz oec oee oei oeo oer oes oey oic oie oii oik oio oir ois oiz okc oke oki okk oko okr oks oo- ooc ooi ook ooo oor oos or- orc ore ori ork oro orr ors ory orz os- osc ose osi osk oso osr oss oye oyi oyo oys oze ozo ozs ozz rcc rce rci rco rcr rcs re- rec ree rei rek reo rer res rey rez ric rie rii rik rio rir ris riy riz rkc rke rkk rko rks rky rkz roc roe roi rok roo ror ros roy roz rrc rri rrk rrr rrs rsc rse rsi rsk rso rsr rss ry- ryc rye ryk ryo ryr rys ryy ryz rze rzo rzy scc sce sci sck sco scr scs se- sec see sei sek seo ser ses sey sez sic sie sii sik sio sir sis sk- skc ske ski skk sko skr sks sky soc soe soi sok soo sor sos soy soz sr- src sre sri srk sro srr srs sry ss- ssc sse ssi ssk sso ssr sss ssz sy- syc sye syi syk syr sys sze szi szr ycc yce yci yco ycs ycy yec yee yei yek yeo yer yes yey yez yie yii yio yir yis yiz yki ykk yoc yoe yoi yok yoo yor yos yoy yrc yre yro yrs ysc yse ysi ysk yso ysr yss ysy ysz yyc yye yys yyy yyz yzr yzy zce zco zcs zec zee zek zeo zer zes zez zie zik zio zir zis ziz zks zo- zoc zoe zoi zok zoo zor zos zro zrs zse zsi zsz zzr zzs zzy zzz