a-a a-b aaa aab aad aag aah aao aar aas ab- aba abb abd abg abh abo abr abs ad- ada adb add adg adh ado adr ads ag- aga agb agd agg agh ago agr ags aha ahb ahd ahg ahh aho ahr ahs aoa aob aod aog aoh aoo aor aos ar- ara arb ard arg arh aro arr ars as- asa asb asd asg ash aso asr ass baa bab bad bag bah bao bar bas bba bbb bbd bbg bbh bbo bbr bbs bda bdb bdd bdg bdh bdo bdr bds bga bgb bgd bgg bgh bgo bgr bgs bha bhb bhd bhg bhh bho bhr bhs boa bob bod bog boh boo bor bos bra brb brd brg brh bro brr brs bsa bsb bsd bsg bsh bso bsr bss daa dab dad dag dah dao dar das dba dbb dbd dbg dbh dbo dbr dbs dda ddb ddd ddg ddh ddo ddr dds dga dgd dgg dgh dgr dgs dh- dha dhb dhd dhh dho dhr dhs doa dob dod dog doh doo dor dos dra drb drd drg dro drr drs dsa dsb dsd dsg dsh dso dsr dss g-d gaa gab gad gag gah gao gar gas gba gbd gbg gbh gbo gbr gbs gda gdb gdd gdh gdo gdr gds gga ggb ggd ggg ggh ggo ggr ggs gha ghb ghd ghg ghh gho ghr ghs goa gob god gog goh goo gor gos gra grb grd grg grh gro grr grs gsa gsb gsd gsg gso gsr gss haa hab had hag hah hao har has hba hbb hbd hbg hbh hbo hbr hbs hda hdb hdd hdg hdh hdo hdr hds hga hgb hgg hgh hgo hgr hgs hha hhb hhd hhg hhh hho hhr hhs hoa hob hod hog hoh hoo hor hos hr- hra hrb hrd hrg hrh hro hrr hrs hsa hsb hsd hsg hsh hsr hss oaa oab oad oag oah oao oar oas ob- oba obb obd obg obh obo obr obs oda odb odd odg odh odo odr ods oga ogd ogg ogh ogo ogs oha ohd ohg ohh oho ohr ohs oo- ooa oob ood oog ooh ooo oor oos or- ora orb ord org orh oro orr ors os- osa osb osd osg osh oso osr oss ra- raa rab rad rag rah rao rar ras rba rbb rbd rbg rbh rbo rbr rbs rda rdb rdd rdg rdh rdo rdr rds rga rgb rgd rgg rgh rgo rgr rgs rh- rha rhb rhd rhg rhh rho rhr rhs roa rob rod rog roh roo ror ros rra rrb rrd rrg rrh rrr rrs rsa rsb rsd rsg rsh rso rsr rss saa sab sad sag sah sao sar sas sba sbb sbd sbg sbh sbo sbr sbs sda sdb sdd sdg sdh sdo sdr sds sga sgb sgd sgg sgh sgo sgr sgs sh- sha shb shd shg shh sho shr shs soa sob sod sog soh soo sor sos sr- sra srb srd srg srh sro srr srs ss- ssa ssb ssd ssg ssh sso ssr sss