-er a-a aaa aad aae aaf aag aar aas ad- ada add ade adf adg adr ads aea aed aee aef aeg aer aes af- afa afd afe aff afg afr afs ag- aga agd age agf agg agr ags ar- ara ard are arf arg arr ars as- asa asd ase asf asg asr ass daa dad dae daf dag dar das dda ddd dde ddf ddg ddr dds de- dea ded dee def deg der des dfa dfd dfe dff dfg dfr dfs dga dgd dge dgf dgg dgr dgs dra drd dre drg drr drs dsa dsd dse dsf dsg dsr dss eaa ead eae eaf eag ear eas ed- eda edd ede edf edg edr eds eea eed eee eef eeg eer ees ef- efa efd efe eff efg efr efs ega egd ege egf egg egr egs era erd ere erf erg err ers es- esa esd ese esf esg esr ess faa fad fae faf fag far fas fda fdd fde fdf fdg fdr fds fea fed fee fef feg fer fes ffa ffd ffe fff ffg ffr ffs fga fgd fge fgf fgg fgr fgs fra frd fre frf frg frr frs fsa fsd fse fsf fsg fsr fss g-d gaa gad gae gaf gag gar gas gda gdd gde gdf gdr gds ge- gea ged gee gef geg ger ges gfa gfd gfe gff gfr gfs gga ggd ggg ggr ggs gra grd gre grf grg grr grs gsa gsd gse gsf gsg gsr gss ra- raa rad rae raf rag rar ras rda rdd rde rdf rdg rdr rds re- rea red ree ref reg rer res rfa rfd rfe rff rfg rfr rfs rga rgd rge rgf rgg rgr rgs rra rrd rrf rrg rrr rrs rsa rsd rse rsf rsg rsr rss saa sad sae saf sag sar sas sda sdd sde sdf sdg sdr sds se- sea sed see sef seg ser ses sfa sfd sfe sff sfg sfr sfs sga sgd sge sgf sgg sgr sgs sr- sra srd sre srf srg srr srs ss- ssa ssd sse ssf ssg ssr sss