a-a a-c aaa aac aae aag aam aan aao aas ac- aca acc ace acg acm acn aco acs aea aec aee aeg aem aen aeo aes ag- aga agc age agg agm agn ago ags ama amc ame amg amm amn amo ams an- ana anc ane ang anm ann ano ans aoa aoc aoe aog aom aon aoo aos as- asa asc ase asg asm asn aso ass c-- caa cac cae cag cam can cao cas cca ccc cce ccg ccm ccn cco ccs ce- cea cec cee ceg cem cen ceo ces cga cgc cge cgg cgm cgn cgo cgs cma cmc cme cmg cmm cmn cmo cms cn- cna cnc cne cng cnm cnn cno cns co- coa coc coe cog com con coo cos csa csc cse csg csm csn cso css eaa eac eae eag eam ean eao eas ec- eca ecc ece ecg ecm ecn eco ecs eea eec eee eeg eem een eeo ees ega egc ege egg egm egn ego egs em- ema emc eme emg emm emn emo ems en- ena enc ene eng enm enn eno ens eo- eoa eoc eoe eog eom eon eoo eos es- esa esc ese esg esm esn eso ess gaa gac gae gag gam gan gao gas gca gcc gce gcg gcm gcn gco gcs ge- gea gec gee geg gem gen geo ges gga ggc ggg ggm ggn ggo ggs gma gmc gme gmg gmm gmn gmo gms gna gnc gne gnm gnn gno gns goa goc goe gog gom gon goo gos gsa gsc gse gsg gsm gsn gso gss m-o maa mac mae mag mam man mao mas mc- mca mcc mce mcg mcm mcn mco mcs mea mec mee meg mem men meo mes mga mgc mge mgm mgn mgo mgs mma mmc mme mmg mmm mmn mmo mms mna mnc mne mng mnm mnn mno mns moa moc moe mog mom mon moo mos msa msc mse msg msm msn mso mss naa nac nae nag nam nan nao nas nca ncc nce ncg ncm ncn nco ncs ne- nea nec nee neg nem nen neo nes nga ngc nge ngg ngm ngn ngo ngs nma nmc nme nmg nmm nmn nmo nms nna nnc nne nng nnm nnn nno nns no- noa noc noe nog nom non noo nos nsa nsc nse nsg nsm nsn nso nss oaa oac oae oag oam oan oao oas oc- oca occ ocg ocm ocn oco ocs oea oec oee oeg oem oen oeo oes oga ogc oge ogg ogn ogo ogs om- oma omc ome omg omm omn omo oms on- ona onc one ong onn ono ons oo- ooa ooc oog oom oon ooo oos os- osa osc ose osg osm osn oso oss saa sac sae sag sam san sao sas sca scc sce scg scm scn sco scs se- sea sec see seg sem sen seo ses sga sgc sge sgg sgm sgn sgo sgs sma smc sme smg smm smn smo sms sna snc sne sng snm snn sno sns soa soc soe sog som son soo sos ss- ssa ssc sse ssg ssm ssn sso sss