-er -ic c-- ccc cce ccg cci cck ccr ccs ccu ccz ce- cec cee ceg cei cek cer ces ceu cez cgc cge cgg cgi cgr cgs cgu ci- cic cie cig cii cik cir cis ciu ckc cki cks crc cre crg cri crk crr crs cru crz csc cse csg csi csk csr css csu csz cuc cue cug cui cuk cur cus cuu cuz cz- czc cze czk ec- ecc ece ecg eci eck ecr ecs ecu eec eee eeg eek eer ees egc ege egg egi egr egs egu eic eie eig eii eik eir eis eiu ekc eke ekg eki ekr eks eku erc ere erg eri erk err ers eru erz es- esc ese esg esi esk esr ess esu eu- euc eue eug eui eur eus eze ezr ezs ezz gcc gce gcg gci gck gcr gcs gcu ge- gec gee geg gei gek ger ges geu gez ggc ggg ggi ggr ggs ggu ggz gic gie gig gii gik gir gis giu giz gks grc gre grg gri grk grr grs gru gsc gse gsg gsi gsk gsr gss gsu gu- guc gue gug gui guk gur gus guu guz gzr gzu icc ice icg ici ick icr ics icu icz ie- iec iee ieg iei iek ier ies igc ige igg igi igk igr igs igu iic iie iii iir iis iiu ikc ike iki ikk ikr iks iku ir- irc ire irg iri irk irr irs iru is- isc ise isg isi isk isr iss isu iu- iuc iue iug iui iur ius iuz ize izi izu izz k-z kcc kce kcg kci kck kcr kcs kcu ke- kec kee keg kei kek ker kes kez kgc kgi kgs kgu kic kie kig kii kik kir kis kiu kiz kkc kke kki kkk kkr kks kku krc krg kri krk krr krs kru ksc kse ksg ksi ksk ksr kss ksu kuc kue kug kui kuk kur kus kuu rcc rce rcg rci rcr rcs rcu re- rec ree reg rei rek rer res reu rez rgc rge rgg rgi rgk rgr rgs ric rie rig rii rik rir ris riz rkc rke rkg rkk rks rku rkz rrc rrg rri rrk rrr rrs rru rsc rse rsg rsi rsk rsr rss rsu ruc rue rug rui ruk rur rus ruu ruz rze scc sce scg sci sck scr scs scu se- sec see seg sei sek ser ses seu sez sgc sge sgg sgi sgk sgr sgs sgu sic sie sig sii sik sir sis siu sk- skc ske skg ski skk skr sks sku sr- src sre srg sri srk srr srs ss- ssc sse ssg ssi ssk ssr sss ssu ssz suc sue sug sui suk sur sus suu suz sze szi szr szu ucc uce ucg uci uck ucr ucs ucu uec uee ueg uei uer ues ugc uge ugg ugi ugk ugr ugs ugu uic uie uig uii uir uis uiu ukc uke uki ukk ukr uku ukz ur- urc ure urg uri urk urr urs uru urz usc use usg usi usk usr uss usu usz uuc uue uug uur uus uuu uzi uzu z-g zce zcs zec zee zek zer zes zez zgg zgi zgs zie zig zik zir zis ziz zks zrs zse zsg zsi zsu zsz zuc zug zui zuk zur zus zuz zzr zzs zzz