ddd ddf ddn ddo ddr dds dfd dff dfn dfo dfr dfs dnd dnf dnn dno dnr dns dod dof don doo dor dos drd drn dro drr drs dsd dsf dsn dso dsr dss fdd fdf fdn fdo fdr fds ffd fff ffn ffo ffr ffs fnd fnf fnn fnr fns fof fon foo for fos frd frf frn fro frr frs fsd fsf fsn fso fsr fss ndd ndf ndn ndo ndr nds nfd nff nfn nfo nfr nfs nnf nnn nno nns no- nod nof non noo nor nos nrd nrf nrn nro nrr nrs nsd nsf nsn nso nsr nss odd odf odn odo odr ods of- ofd off ofn ofo ofr ofs on- ond onf onn ono onr ons oo- ood oof oon ooo oor oos or- ord orf orn oro orr ors os- osd osf osn oso osr oss rdd rdf rdn rdo rdr rds rfd rff rfn rfo rfr rfs rnd rnn rno rnr rns rod rof ron roo ror ros rrd rrf rrn rrr rrs rsd rsf rsn rso rsr rss sdd sdf sdn sdo sdr sds sfd sff sfn sfo sfr sfs snd snf snn sno snr sns sod sof son soo sor sos sr- srd srf srn sro srr srs ss- ssd ssf ssn sso ssr sss