a-a aaa aad aaf aan aao aap aar aas ad- ada add adf adn ado adp adr ads af- afa afd aff afn afo afp afr afs an- ana and anf ann ano anp anr ans aoa aod aof aon aoo aop aor aos ap- apa apd apf apn apo app apr aps ar- ara ard arf arn aro arp arr ars as- asa asd asf asn aso asp asr ass daa dad daf dan dao dap dar das dda ddd ddf ddn ddo ddp ddr dds dfa dfd dff dfn dfo dfp dfr dfs dna dnd dnf dnn dno dnp dnr dns doa dod dof don doo dop dor dos dpa dpd dpf dpn dpo dpp dpr dps dra drd drn dro drp drr drs dsa dsd dsf dsn dso dsp dsr dss faa fad faf fan fao fap far fas fda fdd fdf fdn fdo fdp fdr fds ffa ffd fff ffn ffo ffp ffr ffs fna fnd fnf fnn fnp fnr fns foa fof fon foo fop for fos fpa fpd fpn fpo fpp fpr fps fra frd frf frn fro frp frr frs fsa fsd fsf fsn fso fsp fsr fss naa nad naf nan nao nap nar nas nda ndd ndf ndn ndo ndp ndr nds nfa nfd nff nfn nfo nfp nfr nfs nna nnf nnn nno nnp nns no- noa nod nof non noo nop nor nos npa npd npf npn npo npp npr nps nra nrd nrf nrn nro nrp nrr nrs nsa nsd nsf nsn nso nsp nsr nss oaa oad oaf oan oao oap oar oas oda odd odf odn odo odp odr ods of- ofa ofd off ofn ofo ofp ofr ofs on- ona ond onf onn ono onp onr ons oo- ooa ood oof oon ooo oop oor oos op- opa opd opf opn opo opp opr ops or- ora ord orf orn oro orp orr ors os- osa osd osf osn oso osp osr oss p-p paa pad paf pan pao pap par pas pda pdd pdf pdn pdo pdp pdr pds pfa pfd pff pfn pfo pfp pfr pfs pn- pna pnd pnf pnn pno pnp pnr pns poa pod pof pon poo pop por pos ppa ppd ppf ppn ppo ppp ppr pps pra prd prf prn pro prp prr prs ps- psa psd psf psn pso psp psr pss ra- raa rad raf ran rao rap rar ras rda rdd rdf rdn rdo rdp rdr rds rfa rfd rff rfn rfo rfp rfr rfs rna rnd rnn rno rnp rnr rns roa rod rof ron roo rop ror ros rpa rpd rpf rpn rpo rpp rpr rps rra rrd rrf rrn rrp rrr rrs rsa rsd rsf rsn rso rsp rsr rss saa sad saf san sao sap sar sas sda sdd sdf sdn sdo sdp sdr sds sfa sfd sff sfn sfo sfp sfr sfs sna snd snf snn sno snp snr sns soa sod sof son soo sop sor sos spa spd spf spn spo spp spr sps sr- sra srd srf srn sro srp srr srs ss- ssa ssd ssf ssn sso ssp ssr sss