-er -ic c-- ccc cce ccg cci cco ccr ccs ccu ce- cec cee ceg cei ceo cer ces ceu cgc cge cgg cgi cgo cgr cgs cgu ci- cic cie cig cii cio cir cis ciu co- coc coe cog coi coo cor cos cou crc cre crg cri cro crr crs cru csc cse csg csi cso csr css csu cuc cue cug cui cuo cur cus cuu ec- ecc ece ecg eci eco ecr ecs ecu eec eee eeg eeo eer ees egc ege egg egi ego egr egs egu eic eie eig eii eio eir eis eiu eo- eoc eoe eog eoi eoo eor eos eou erc ere erg eri ero err ers eru es- esc ese esg esi eso esr ess esu eu- euc eue eug eui eur eus gcc gce gcg gci gco gcr gcs gcu ge- gec gee geg gei geo ger ges geu ggc ggg ggi ggo ggr ggs ggu gic gie gig gii gio gir gis giu goc goe gog goi goo gor gos gou grc gre grg gri gro grr grs gru gsc gse gsg gsi gso gsr gss gsu gu- guc gue gug gui guo gur gus guu icc ice icg ici ico icr ics icu ie- iec iee ieg iei ier ies igc ige igg igi igo igr igs igu iic iie iii iio iir iis iiu io- ioc ioe iog ioi ioo ior ios iou ir- irc ire irg iri iro irr irs iru is- isc ise isg isi iso isr iss isu iu- iuc iue iug iui iur ius o-i oc- occ ocg oci oco ocr ocs ocu oec oee oeg oei oeo oer oes ogc oge ogg ogi ogo ogs oic oie oii oio oir ois oiu oo- ooc oog ooi ooo oor oos or- orc ore org ori oro orr ors oru os- osc ose osg osi oso osr oss osu ou- ouc oue oui ouo our ous rcc rce rcg rci rco rcr rcs rcu re- rec ree reg rei reo rer res reu rgc rge rgg rgi rgo rgr rgs ric rie rig rii rio rir ris roc roe rog roi roo ror ros rou rrc rrg rri rrr rrs rru rsc rse rsg rsi rso rsr rss rsu ruc rue rug rui ruo rur rus ruu scc sce scg sci sco scr scs scu se- sec see seg sei seo ser ses seu sgc sge sgg sgi sgo sgr sgs sgu sic sie sig sii sio sir sis siu soc soe sog soi soo sor sos sou sr- src sre srg sri sro srr srs ss- ssc sse ssg ssi sso ssr sss ssu suc sue sug sui suo sur sus suu ucc uce ucg uci uco ucr ucs ucu uec uee ueg uei uer ues ugc uge ugg ugi ugo ugr ugs ugu uic uie uig uii uio uir uis uiu uoc uoe uog uoo uor uos ur- urc ure urg uri uro urr urs uru usc use usg usi uso usr uss usu uuc uue uug uur uus uuu