-er a-a a-b aaa aab aad aae aaj aan aar aas ab- aba abb abd abe abj abn abr abs ad- ada adb add ade adj adn adr ads aea aeb aed aee aej aen aer aes aja ajb ajd aje ajj ajn ajr ajs an- ana anb and ane anj ann anr ans ar- ara arb ard are arj arn arr ars as- asa asb asd ase asj asn asr ass baa bab bad bae baj ban bar bas bba bbb bbd bbe bbn bbr bbs bda bdb bdd bde bdj bdr bds be- bea beb bed bee ben ber bes bja bjd bjj bjn bjr bjs bna bnb bnd bne bnj bnn bnr bns bra brb brd bre brj brn brr brs bsa bsb bsd bse bsj bsn bsr bss daa dab dad dae daj dan dar das dba dbb dbd dbe dbn dbr dbs dda ddb ddd dde ddn ddr dds de- dea deb ded dee dej den der des dj- dja djb djd dje djs dna dnb dnd dne dnj dnn dnr dns dra drb drd dre drj drn drr drs dsa dsb dsd dse dsj dsn dsr dss eaa eab ead eae eaj ean ear eas eba ebb ebd ebe ebj ebn ebr ebs ed- eda edb edd ede edj edn edr eds eea eeb eed eee een eer ees eja ejd en- ena enb end ene enn enr ens era erb erd ere ern err ers es- esa esb esd ese esn esr ess j-d jaa jab jad jae jaj jan jar jas jba jbj jbr jbs jda jdb jde jdn jdr jds jea jeb jed jee jej jen jer jes jja jjb jjj jjr jjs jna jnd jne jnj jnn jnr jns jra jrb jrn jrr jrs jsa jsb jsd jse jsj jsn jsr jss naa nab nad nae naj nan nar nas nba nbb nbd nbe nbn nbr nbs nda ndb ndd nde ndn ndr nds ne- nea neb ned nee nej nen ner nes nja nje njn njs nna nnb nne nnn nns nra nrb nrd nre nrj nrn nrr nrs nsa nsb nsd nse nsn nsr nss ra- raa rab rad rae raj ran rar ras rba rbb rbd rbe rbn rbr rbs rda rdb rdd rde rdj rdn rdr rds re- rea reb red ree ren rer res rja rjr rna rnb rnd rnn rnr rns rra rrb rrd rrn rrr rrs rsa rsb rsd rse rsj rsn rsr rss saa sab sad sae saj san sar sas sba sbb sbd sbe sbj sbn sbr sbs sda sdb sdd sde sdj sdn sdr sds se- sea seb sed see sej sen ser ses sja sjb sjd sje sjj sjr sjs sna snb snd sne snj snn snr sns sr- sra srb srd sre srj srn srr srs ss- ssa ssb ssd sse ssj ssn ssr sss