-er a-a a-c aaa aac aad aae aag aah aao aar aas ac- aca acc acd ace acg ach aco acr acs ad- ada adc add ade adg adh ado adr ads aea aec aed aee aeg aeh aeo aer aes ag- aga agc agd age agg agh ago agr ags aha ahc ahd ahe ahg ahh aho ahr ahs aoa aoc aod aoe aog aoh aoo aor aos ar- ara arc ard are arg arh aro arr ars as- asa asc asd ase asg ash aso asr ass c-- caa cac cad cae cag cah cao car cas cca ccc ccd cce ccg cch cco ccr ccs cda cdc cdd cde cdg cdh cdo cdr cds ce- cea cec ced cee ceg ceh ceo cer ces cga cgc cgd cge cgg cgh cgo cgr cgs ch- cha chc chd che chg chh cho chr chs co- coa coc cod coe cog coh coo cor cos cra crc crd cre crg crh cro crr crs csa csc csd cse csg csh cso csr css daa dac dad dae dag dah dao dar das dca dcc dcd dce dcg dco dcr dcs dda ddc ddd dde ddg ddh ddo ddr dds de- dea dec ded dee deg deh deo der des dga dgc dgd dge dgg dgh dgr dgs dh- dha dhc dhd dhe dhh dho dhr dhs doa doc dod doe dog doh doo dor dos dra drc drd dre drg dro drr drs dsa dsc dsd dse dsg dsh dso dsr dss eaa eac ead eae eag eah eao ear eas ec- eca ecc ecd ece ecg ech eco ecr ecs ed- eda edc edd ede edg edh edo edr eds eea eec eed eee eeg eeo eer ees ega egc egd ege egg egh ego egr egs eha ehc ehd ehe ehg ehh eho ehr ehs eo- eoa eoc eod eoe eog eoh eoo eor eos era erc erd ere erg erh ero err ers es- esa esc esd ese esg esh eso esr ess g-d gaa gac gad gae gag gah gao gar gas gca gcc gcd gce gcg gch gco gcr gcs gda gdc gdd gde gdh gdo gdr gds ge- gea gec ged gee geg geh geo ger ges gga ggc ggd ggg ggh ggo ggr ggs gha ghc ghd ghe ghg ghh gho ghr ghs goa goc god goe gog goh goo gor gos gra grc grd gre grg grh gro grr grs gsa gsc gsd gse gsg gso gsr gss haa hac had hae hag hah hao har has hca hcc hcd hce hcg hch hco hcr hcs hda hdc hdd hde hdg hdh hdo hdr hds he- hea hec hed hee heg heh heo her hes hga hgc hge hgg hgh hgo hgr hgs hha hhc hhd hhe hhg hhh hho hhr hhs hoa hoc hod hoe hog hoh hoo hor hos hr- hra hrc hrd hre hrg hrh hro hrr hrs hsa hsc hsd hse hsg hsh hsr hss oaa oac oad oae oag oah oao oar oas oc- oca occ ocd ocg och oco ocr ocs oda odc odd ode odg odh odo odr ods oea oec oed oee oeg oeh oeo oer oes oga ogc ogd oge ogg ogh ogo ogs oha ohc ohd ohe ohg ohh oho ohr ohs oo- ooa ooc ood oog ooh ooo oor oos or- ora orc ord ore org orh oro orr ors os- osa osc osd ose osg osh oso osr oss ra- raa rac rad rae rag rah rao rar ras rca rcc rcd rce rcg rch rco rcr rcs rda rdc rdd rde rdg rdh rdo rdr rds re- rea rec red ree reg reh reo rer res rga rgc rgd rge rgg rgh rgo rgr rgs rh- rha rhc rhd rhe rhg rhh rho rhr rhs roa roc rod roe rog roh roo ror ros rra rrc rrd rrg rrh rrr rrs rsa rsc rsd rse rsg rsh rso rsr rss saa sac sad sae sag sah sao sar sas sca scc scd sce scg sch sco scr scs sda sdc sdd sde sdg sdh sdo sdr sds se- sea sec sed see seg seh seo ser ses sga sgc sgd sge sgg sgh sgo sgr sgs sh- sha shc shd she shg shh sho shr shs soa soc sod soe sog soh soo sor sos sr- sra src srd sre srg srh sro srr srs ss- ssa ssc ssd sse ssg ssh sso ssr sss