-er a-a a-c aaa aac aad aae aag aao aar aas aau ac- aca acc acd ace acg aco acr acs acu ad- ada adc add ade adg ado adr ads adu aea aec aed aee aeg aeo aer aes aeu ag- aga agc agd age agg ago agr ags agu aoa aoc aod aoe aog aoo aor aos aou ar- ara arc ard are arg aro arr ars aru as- asa asc asd ase asg aso asr ass asu au- aua auc aud aue aug auo aur aus c-- caa cac cad cae cag cao car cas cau cca ccc ccd cce ccg cco ccr ccs ccu cda cdc cdd cde cdg cdo cdr cds cdu ce- cea cec ced cee ceg ceo cer ces ceu cga cgc cgd cge cgg cgo cgr cgs cgu co- coa coc cod coe cog coo cor cos cou cra crc crd cre crg cro crr crs cru csa csc csd cse csg cso csr css csu cua cuc cud cue cug cuo cur cus cuu daa dac dad dae dag dao dar das dau dca dcc dcd dce dcg dco dcr dcs dcu dda ddc ddd dde ddg ddo ddr dds ddu de- dea dec ded dee deg deo der des deu dga dgc dgd dge dgg dgr dgs dgu doa doc dod doe dog doo dor dos dou dra drc drd dre drg dro drr drs dru dsa dsc dsd dse dsg dso dsr dss dsu dua duc dud due dug duo dur dus eaa eac ead eae eag eao ear eas eau ec- eca ecc ecd ece ecg eco ecr ecs ecu ed- eda edc edd ede edg edo edr eds edu eea eec eed eee eeg eeo eer ees ega egc egd ege egg ego egr egs egu eo- eoa eoc eod eoe eog eoo eor eos eou era erc erd ere erg ero err ers eru es- esa esc esd ese esg eso esr ess esu eu- eua euc eud eue eug eur eus g-d gaa gac gad gae gag gao gar gas gau gca gcc gcd gce gcg gco gcr gcs gcu gda gdc gdd gde gdo gdr gds gdu ge- gea gec ged gee geg geo ger ges geu gga ggc ggd ggg ggo ggr ggs ggu goa goc god goe gog goo gor gos gou gra grc grd gre grg gro grr grs gru gsa gsc gsd gse gsg gso gsr gss gsu gu- gua guc gud gue gug guo gur gus guu oaa oac oad oae oag oao oar oas oau oc- oca occ ocd ocg oco ocr ocs ocu oda odc odd ode odg odo odr ods odu oea oec oed oee oeg oeo oer oes oga ogc ogd oge ogg ogo ogs oo- ooa ooc ood oog ooo oor oos or- ora orc ord ore org oro orr ors oru os- osa osc osd ose osg oso osr oss osu ou- oua ouc oud oue ouo our ous ra- raa rac rad rae rag rao rar ras rau rca rcc rcd rce rcg rco rcr rcs rcu rda rdc rdd rde rdg rdo rdr rds rdu re- rea rec red ree reg reo rer res reu rga rgc rgd rge rgg rgo rgr rgs roa roc rod roe rog roo ror ros rou rra rrc rrd rrg rrr rrs rru rsa rsc rsd rse rsg rso rsr rss rsu rua ruc rud rue rug ruo rur rus ruu saa sac sad sae sag sao sar sas sau sca scc scd sce scg sco scr scs scu sda sdc sdd sde sdg sdo sdr sds sdu se- sea sec sed see seg seo ser ses seu sga sgc sgd sge sgg sgo sgr sgs sgu soa soc sod soe sog soo sor sos sou sr- sra src srd sre srg sro srr srs ss- ssa ssc ssd sse ssg sso ssr sss ssu sua suc sud sue sug suo sur sus suu ua- uaa uac uad uae uag uao uar uas uau uca ucc ucd uce ucg uco ucr ucs ucu uda udc udd ude udg udo udr uds udu uea uec ued uee ueg uer ues uga ugc uge ugg ugo ugr ugs ugu uoa uoc uod uoe uog uoo uor uos ur- ura urc urd ure urg uro urr urs uru usa usc usd use usg uso usr uss usu uua uuc uue uug uur uus uuu