a-a aaa aad aaf aan aao aar aas ad- ada add adf adn ado adr ads af- afa afd aff afn afo afr afs an- ana and anf ann ano anr ans aoa aod aof aon aoo aor aos ar- ara ard arf arn aro arr ars as- asa asd asf asn aso asr ass daa dad daf dan dao dar das dda ddd ddf ddn ddo ddr dds dfa dfd dff dfn dfo dfr dfs dna dnd dnf dnn dno dnr dns doa dod dof don doo dor dos dra drd drn dro drr drs dsa dsd dsf dsn dso dsr dss faa fad faf fan fao far fas fda fdd fdf fdn fdo fdr fds ffa ffd fff ffn ffo ffr ffs fna fnd fnf fnn fnr fns foa fof fon foo for fos fra frd frf frn fro frr frs fsa fsd fsf fsn fso fsr fss naa nad naf nan nao nar nas nda ndd ndf ndn ndo ndr nds nfa nfd nff nfn nfo nfr nfs nna nnf nnn nno nns no- noa nod nof non noo nor nos nra nrd nrf nrn nro nrr nrs nsa nsd nsf nsn nso nsr nss oaa oad oaf oan oao oar oas oda odd odf odn odo odr ods of- ofa ofd off ofn ofo ofr ofs on- ona ond onf onn ono onr ons oo- ooa ood oof oon ooo oor oos or- ora ord orf orn oro orr ors os- osa osd osf osn oso osr oss ra- raa rad raf ran rao rar ras rda rdd rdf rdn rdo rdr rds rfa rfd rff rfn rfo rfr rfs rna rnd rnn rno rnr rns roa rod rof ron roo ror ros rra rrd rrf rrn rrr rrs rsa rsd rsf rsn rso rsr rss saa sad saf san sao sar sas sda sdd sdf sdn sdo sdr sds sfa sfd sff sfn sfo sfr sfs sna snd snf snn sno snr sns soa sod sof son soo sor sos sr- sra srd srf srn sro srr srs ss- ssa ssd ssf ssn sso ssr sss