-er -ic c-- ccc cce ccg cci ccm cco ccr ccs ce- cec cee ceg cei cem ceo cer ces cgc cge cgg cgi cgm cgo cgr cgs ci- cic cie cig cii cim cio cir cis cmc cme cmg cmi cmm cmo cmr cms co- coc coe cog coi com coo cor cos crc cre crg cri crm cro crr crs csc cse csg csi csm cso csr css ec- ecc ece ecg eci ecm eco ecr ecs eec eee eeg eem eeo eer ees egc ege egg egi egm ego egr egs eic eie eig eii eim eio eir eis em- emc eme emg emi emm emo emr ems eo- eoc eoe eog eoi eom eoo eor eos erc ere erg eri erm ero err ers es- esc ese esg esi esm eso esr ess gcc gce gcg gci gcm gco gcr gcs ge- gec gee geg gei gem geo ger ges ggc ggg ggi ggm ggo ggr ggs gic gie gig gii gim gio gir gis gmc gme gmg gmi gmm gmo gmr gms goc goe gog goi gom goo gor gos grc gre grg gri grm gro grr grs gsc gse gsg gsi gsm gso gsr gss icc ice icg ici icm ico icr ics ie- iec iee ieg iei iem ier ies igc ige igg igi igm igo igr igs iic iie iii iim iio iir iis im- imc ime img imi imm imo ims io- ioc ioe iog ioi iom ioo ior ios ir- irc ire irg iri irm iro irr irs is- isc ise isg isi ism iso isr iss m-o m-r mc- mcc mce mcg mci mcm mco mcr mcs mec mee meg mei mem meo mer mes mgc mge mgi mgm mgo mgr mgs mi- mic mie mig mii mim mio mir mis mmc mme mmg mmi mmm mmo mmr mms moc moe mog moi mom moo mor mos mrc mre mrg mri mrm mro mrr mrs msc mse msg msi msm mso msr mss o-i oc- occ ocg oci ocm oco ocr ocs oec oee oeg oei oem oeo oer oes ogc oge ogg ogi ogo ogs oic oie oii oim oio oir ois om- omc ome omg omi omm omo omr oms oo- ooc oog ooi oom ooo oor oos or- orc ore org ori orm oro orr ors os- osc ose osg osi osm oso osr oss rcc rce rcg rci rcm rco rcr rcs re- rec ree reg rei rem reo rer res rgc rge rgg rgi rgo rgr rgs ric rie rig rii rim rio rir ris rmc rme rmg rmi rmm rmo rmr rms roc roe rog roi rom roo ror ros rrc rrg rri rrm rrr rrs rsc rse rsg rsi rsm rso rsr rss scc sce scg sci scm sco scr scs se- sec see seg sei sem seo ser ses sgc sge sgg sgi sgm sgo sgr sgs sic sie sig sii sim sio sir sis smc sme smg smi smm smo smr sms soc soe sog soi som soo sor sos sr- src sre srg sri srm sro srr srs ss- ssc sse ssg ssi ssm sso ssr sss