a-a a-c aaa aac aae aag aam aao aas ac- aca acc ace acg acm aco acs aea aec aee aeg aem aeo aes ag- aga agc age agg agm ago ags ama amc ame amg amm amo ams aoa aoc aoe aog aom aoo aos as- asa asc ase asg asm aso ass c-- caa cac cae cag cam cao cas cca ccc cce ccg ccm cco ccs ce- cea cec cee ceg cem ceo ces cga cgc cge cgg cgm cgo cgs cma cmc cme cmg cmm cmo cms co- coa coc coe cog com coo cos csa csc cse csg csm cso css eaa eac eae eag eam eao eas ec- eca ecc ece ecg ecm eco ecs eea eec eee eeg eem eeo ees ega egc ege egg egm ego egs em- ema emc eme emg emm emo ems eo- eoa eoc eoe eog eom eoo eos es- esa esc ese esg esm eso ess gaa gac gae gag gam gao gas gca gcc gce gcg gcm gco gcs ge- gea gec gee geg gem geo ges gga ggc ggg ggm ggo ggs gma gmc gme gmg gmm gmo gms goa goc goe gog gom goo gos gsa gsc gse gsg gsm gso gss m-o maa mac mae mag mam mao mas mc- mca mcc mce mcg mcm mco mcs mea mec mee meg mem meo mes mga mgc mge mgm mgo mgs mma mmc mme mmg mmm mmo mms moa moc moe mog mom moo mos msa msc mse msg msm mso mss oaa oac oae oag oam oao oas oc- oca occ ocg ocm oco ocs oea oec oee oeg oem oeo oes oga ogc oge ogg ogo ogs om- oma omc ome omg omm omo oms oo- ooa ooc oog oom ooo oos os- osa osc ose osg osm oso oss saa sac sae sag sam sao sas sca scc sce scg scm sco scs se- sea sec see seg sem seo ses sga sgc sge sgg sgm sgo sgs sma smc sme smg smm smo sms soa soc soe sog som soo sos ss- ssa ssc sse ssg ssm sso sss