-er -ic c-- ccc cce ccg cci ccr ccs cct ccu ce- cec cee ceg cei cer ces cet ceu cgc cge cgg cgi cgr cgs cgt cgu ci- cic cie cig cii cir cis cit ciu crc cre crg cri crr crs crt cru csc cse csg csi csr css cst csu ctc cte ctg cti ctr cts ctt ctu cuc cue cug cui cur cus cut cuu ec- ecc ece ecg eci ecr ecs ect ecu eec eee eeg eer ees eet egc ege egg egi egr egs egt egu eic eie eig eii eir eis eit eiu erc ere erg eri err ers ert eru es- esc ese esg esi esr ess est esu etc ete etg eti etr ets ett etu eu- euc eue eug eui eur eus eut gcc gce gcg gci gcr gcs gct gcu ge- gec gee geg gei ger ges get geu ggc ggg ggi ggr ggs ggt ggu gic gie gig gii gir gis git giu grc gre grg gri grr grs grt gru gsc gse gsg gsi gsr gss gst gsu gtc gte gtg gti gtr gts gtt gtu gu- guc gue gug gui gur gus gut guu icc ice icg ici icr ics ict icu ie- iec iee ieg iei ier ies iet igc ige igg igi igr igs igt igu iic iie iii iir iis iit iiu ir- irc ire irg iri irr irs irt iru is- isc ise isg isi isr iss ist isu itc ite itg iti its itt itu iu- iuc iue iug iui iur ius iut rcc rce rcg rci rcr rcs rct rcu re- rec ree reg rei rer res ret reu rgc rge rgg rgi rgr rgs rgt ric rie rig rii rir ris rit rrc rrg rri rrr rrs rrt rru rsc rse rsg rsi rsr rss rst rsu rtc rte rtg rti rtr rts rtt rtu ruc rue rug rui rur rus rut ruu scc sce scg sci scr scs sct scu se- sec see seg sei ser ses set seu sgc sge sgg sgi sgr sgs sgt sgu sic sie sig sii sir sis sit siu sr- src sre srg sri srr srs srt ss- ssc sse ssg ssi ssr sss sst ssu stc ste stg sti str sts stt stu suc sue sug sui sur sus sut suu tcc tce tcg tci tcr tcs tct tcu te- tec tee teg tei ter tes tet teu tgc tge tgg tgi tgr tgs tgt tgu tic tie tig tii tir tis tit tiu trc tre trg tri trr trs trt tru tsc tse tsg tsi tsr tss tst tsu ttc tte ttg tti ttr tts ttt ttu tuc tue tug tui tur tus tut tuu ucc uce ucg uci ucr ucs uct ucu uec uee ueg uei uer ues uet ugc uge ugg ugi ugr ugs ugt ugu uic uie uig uii uir uis uit uiu ur- urc ure urg uri urr urs urt uru usc use usg usi usr uss ust usu utc ute uti utr uts utt utu uuc uue uug uur uus uut uuu