a-a a-c aaa aac aad aag aan aao aar aas ac- aca acc acd acg acn aco acr acs ad- ada adc add adg adn ado adr ads ag- aga agc agd agg agn ago agr ags an- ana anc and ang ann ano anr ans aoa aoc aod aog aon aoo aor aos ar- ara arc ard arg arn aro arr ars as- asa asc asd asg asn aso asr ass c-- caa cac cad cag can cao car cas cca ccc ccd ccg ccn cco ccr ccs cda cdc cdd cdg cdn cdo cdr cds cga cgc cgd cgg cgn cgo cgr cgs cn- cna cnc cnd cng cnn cno cnr cns co- coa coc cod cog con coo cor cos cra crc crd crg crn cro crr crs csa csc csd csg csn cso csr css daa dac dad dag dan dao dar das dca dcc dcd dcg dcn dco dcr dcs dda ddc ddd ddg ddn ddo ddr dds dga dgc dgd dgg dgn dgr dgs dna dnc dnd dng dnn dno dnr dns doa doc dod dog don doo dor dos dra drc drd drg drn dro drr drs dsa dsc dsd dsg dsn dso dsr dss g-d gaa gac gad gag gan gao gar gas gca gcc gcd gcg gcn gco gcr gcs gda gdc gdd gdn gdo gdr gds gga ggc ggd ggg ggn ggo ggr ggs gna gnc gnd gnn gno gnr gns goa goc god gog gon goo gor gos gra grc grd grg grn gro grr grs gsa gsc gsd gsg gsn gso gsr gss naa nac nad nag nan nao nar nas nca ncc ncd ncg ncn nco ncr ncs nda ndc ndd ndg ndn ndo ndr nds nga ngc ngd ngg ngn ngo ngs nna nnc nng nnn nno nns no- noa noc nod nog non noo nor nos nra nrc nrd nrg nrn nro nrr nrs nsa nsc nsd nsg nsn nso nsr nss oaa oac oad oag oan oao oar oas oc- oca occ ocd ocg ocn oco ocr ocs oda odc odd odg odn odo odr ods oga ogc ogd ogg ogn ogo ogs on- ona onc ond ong onn ono onr ons oo- ooa ooc ood oog oon ooo oor oos or- ora orc ord org orn oro orr ors os- osa osc osd osg osn oso osr oss ra- raa rac rad rag ran rao rar ras rca rcc rcd rcg rcn rco rcr rcs rda rdc rdd rdg rdn rdo rdr rds rga rgc rgd rgg rgn rgo rgr rgs rna rnc rnd rng rnn rno rnr rns roa roc rod rog ron roo ror ros rra rrc rrd rrg rrn rrr rrs rsa rsc rsd rsg rsn rso rsr rss saa sac sad sag san sao sar sas sca scc scd scg scn sco scr scs sda sdc sdd sdg sdn sdo sdr sds sga sgc sgd sgg sgn sgo sgr sgs sna snc snd sng snn sno snr sns soa soc sod sog son soo sor sos sr- sra src srd srg srn sro srr srs ss- ssa ssc ssd ssg ssn sso ssr sss