a-a aaa aad aaf aah aao aar aas ad- ada add adf adh ado adr ads af- afa afd aff afh afo afr afs aha ahd ahf ahh aho ahr ahs aoa aod aof aoh aoo aor aos ar- ara ard arf arh aro arr ars as- asa asd asf ash aso asr ass daa dad daf dah dao dar das dda ddd ddf ddh ddo ddr dds dfa dfd dff dfh dfo dfr dfs dh- dha dhd dhf dhh dho dhr dhs doa dod dof doh doo dor dos dra drd dro drr drs dsa dsd dsf dsh dso dsr dss faa fad faf fah fao far fas fda fdd fdf fdh fdo fdr fds ffa ffd fff ffh ffo ffr ffs fha fhf fhh fho fhr fhs foa fof foh foo for fos fra frd frf frh fro frr frs fsa fsd fsf fsh fso fsr fss haa had haf hah hao har has hda hdd hdf hdh hdo hdr hds hfa hfd hff hfh hfo hfr hfs hha hhd hhf hhh hho hhr hhs hoa hod hof hoh hoo hor hos hr- hra hrd hrf hrh hro hrr hrs hsa hsd hsf hsh hsr hss oaa oad oaf oah oao oar oas oda odd odf odh odo odr ods of- ofa ofd off ofo ofr ofs oha ohd ohf ohh oho ohr ohs oo- ooa ood oof ooh ooo oor oos or- ora ord orf orh oro orr ors os- osa osd osf osh oso osr oss ra- raa rad raf rah rao rar ras rda rdd rdf rdh rdo rdr rds rfa rfd rff rfh rfo rfr rfs rh- rha rhd rhf rhh rho rhr rhs roa rod rof roh roo ror ros rra rrd rrf rrh rrr rrs rsa rsd rsf rsh rso rsr rss saa sad saf sah sao sar sas sda sdd sdf sdh sdo sdr sds sfa sfd sff sfh sfo sfr sfs sh- sha shd shf shh sho shr shs soa sod sof soh soo sor sos sr- sra srd srf srh sro srr srs ss- ssa ssd ssf ssh sso ssr sss