-er a-a a-c aaa aac aad aae aag aah aar aas ac- aca acc acd ace acg ach acr acs ad- ada adc add ade adg adh adr ads aea aec aed aee aeg aeh aer aes ag- aga agc agd age agg agh agr ags aha ahc ahd ahe ahg ahh ahr ahs ar- ara arc ard are arg arh arr ars as- asa asc asd ase asg ash asr ass c-- caa cac cad cae cag cah car cas cca ccc ccd cce ccg cch ccr ccs cda cdc cdd cde cdg cdh cdr cds ce- cea cec ced cee ceg ceh cer ces cga cgc cgd cge cgg cgh cgr cgs ch- cha chc chd che chg chh chr chs cra crc crd cre crg crh crr crs csa csc csd cse csg csh csr css daa dac dad dae dag dah dar das dca dcc dcd dce dcg dcr dcs dda ddc ddd dde ddg ddh ddr dds de- dea dec ded dee deg deh der des dga dgc dgd dge dgg dgh dgr dgs dh- dha dhc dhd dhe dhh dhr dhs dra drc drd dre drg drr drs dsa dsc dsd dse dsg dsh dsr dss eaa eac ead eae eag eah ear eas ec- eca ecc ecd ece ecg ech ecr ecs ed- eda edc edd ede edg edh edr eds eea eec eed eee eeg eer ees ega egc egd ege egg egh egr egs eha ehc ehd ehe ehg ehh ehr ehs era erc erd ere erg erh err ers es- esa esc esd ese esg esh esr ess g-d gaa gac gad gae gag gah gar gas gca gcc gcd gce gcg gch gcr gcs gda gdc gdd gde gdh gdr gds ge- gea gec ged gee geg geh ger ges gga ggc ggd ggg ggh ggr ggs gha ghc ghd ghe ghg ghh ghr ghs gra grc grd gre grg grh grr grs gsa gsc gsd gse gsg gsr gss haa hac had hae hag hah har has hca hcc hcd hce hcg hch hcr hcs hda hdc hdd hde hdg hdh hdr hds he- hea hec hed hee heg heh her hes hga hgc hge hgg hgh hgr hgs hha hhc hhd hhe hhg hhh hhr hhs hr- hra hrc hrd hre hrg hrh hrr hrs hsa hsc hsd hse hsg hsh hsr hss ra- raa rac rad rae rag rah rar ras rca rcc rcd rce rcg rch rcr rcs rda rdc rdd rde rdg rdh rdr rds re- rea rec red ree reg reh rer res rga rgc rgd rge rgg rgh rgr rgs rh- rha rhc rhd rhe rhg rhh rhr rhs rra rrc rrd rrg rrh rrr rrs rsa rsc rsd rse rsg rsh rsr rss saa sac sad sae sag sah sar sas sca scc scd sce scg sch scr scs sda sdc sdd sde sdg sdh sdr sds se- sea sec sed see seg seh ser ses sga sgc sgd sge sgg sgh sgr sgs sh- sha shc shd she shg shh shr shs sr- sra src srd sre srg srh srr srs ss- ssa ssc ssd sse ssg ssh ssr sss