-er ddd dde ddl ddn ddr dds ddu de- ded dee del den der des deu dl- dld dle dll dlr dls dlu dnd dne dnl dnn dnr dns drd dre drl drn drr drs dru dsd dse dsl dsn dsr dss dsu dud due dul dun dur dus ed- edd ede edl edn edr eds edu eed eee eel een eer ees eld ele ell eln elr els elu en- end ene enl enn enr ens enu erd ere erl ern err ers eru es- esd ese esl esn esr ess esu eu- eud eue eul eun eur eus ldd lde ldl ldn ldr lds ldu led lee lel len ler les leu lld lle lll lln llr lls llu lnd lne lnl lnn lnr lns lnu lrd lrn lrr lrs lru lsd lse lsl lsn lsr lss lsu lud lue lul lun lur lus luu ndd nde ndl ndn ndr nds ndu ne- ned nee nel nen ner nes neu nld nle nll nln nlr nls nlu nne nnl nnn nns nnu nrd nre nrl nrn nrr nrs nru nsd nse nsl nsn nsr nss nsu nud nue nul nun nur nus nuu rdd rde rdl rdn rdr rds rdu re- red ree rel ren rer res reu rld rle rll rln rlr rls rlu rnd rnn rnr rns rnu rrd rrl rrn rrr rrs rru rsd rse rsl rsn rsr rss rsu rud rue run rur rus ruu sdd sde sdl sdn sdr sds sdu se- sed see sel sen ser ses seu sld sle sll sln slr sls slu snd sne snl snn snr sns snu sr- srd sre srl srn srr srs ss- ssd sse ssl ssn ssr sss ssu sud sue sul sun sur sus suu udd ude udl udn udr uds udu ued uee uel uen uer ues uld ule ull uln ulr uls ulu un- und une unl unn unr uns unu ur- urd ure url urn urr urs uru usd use usl usn usr uss usu uue uun uur uus uuu