ddd ddf ddg ddk ddo ddr dds ddu dfd dff dfg dfk dfo dfr dfs dfu dgd dgf dgg dgk dgr dgs dgu dkg dkk dko dkr dks dku dod dof dog dok doo dor dos dou drd drg drk dro drr drs dru dsd dsf dsg dsk dso dsr dss dsu dud duf dug duk duo dur dus fdd fdf fdg fdk fdo fdr fds fdu ffd fff ffg ffk ffo ffr ffs ffu fgd fgf fgg fgr fgs fkf fkg fkk fof fog fok foo for fos fou frd frf frg frk fro frr frs fru fsd fsf fsg fsk fso fsr fss fsu fud fuf fug fuk fuo fur fus fuu g-d gdd gdf gdk gdo gdr gds gdu gfd gff gfk gfo gfr gfs ggd ggg ggo ggr ggs ggu gkd gko gks god gof gog gok goo gor gos gou grd grf grg grk gro grr grs gru gsd gsf gsg gsk gso gsr gss gsu gu- gud guf gug guk guo gur gus guu kdf kdg kdk kdo kdr kds kdu kfd kff kfg kfo kfs kfu kgd kgf kgo kgs kgu kkk kkr kks kku kod kof kog kok koo kor kos kou krd krf krg krk kro krr krs kru ksd ksf ksg ksk kso ksr kss ksu kud kug kuk kur kus kuu odd odf odg odo odr ods odu of- ofd off ofg ofo ofr ofs ofu ogd ogf ogg ogo ogs okd okg okk oko okr oks oku oo- ood oof oog ook ooo oor oos or- ord orf org ork oro orr ors oru os- osd osf osg osk oso osr oss osu ou- oud ouf ouk ouo our ous rdd rdf rdg rdo rdr rds rdu rfd rff rfg rfk rfo rfr rfs rfu rgd rgf rgg rgk rgo rgr rgs rkf rkg rkk rko rks rku rod rof rog rok roo ror ros rou rrd rrf rrg rrk rrr rrs rru rsd rsf rsg rsk rso rsr rss rsu rud ruf rug ruk ruo rur rus ruu sdd sdf sdg sdk sdo sdr sds sdu sfd sff sfg sfk sfo sfr sfs sfu sgd sgf sgg sgk sgo sgr sgs sgu sk- skd skf skg skk sko skr sks sku sod sof sog sok soo sor sos sou sr- srd srf srg srk sro srr srs ss- ssd ssf ssg ssk sso ssr sss ssu sud suf sug suk suo sur sus suu udd udf udg udk udo udr uds udu ufd uff ufg ufo ufr ufs ufu ugf ugg ugk ugo ugr ugs ugu ukf ukk ukr uku uod uog uok uoo uor uos ur- urd urf urg urk uro urr urs uru usd usf usg usk uso usr uss usu uug uur uus uuu