-er ddd dde ddl ddn ddr dds ddt de- ded dee del den der des det dl- dld dle dll dlr dls dlt dnd dne dnl dnn dnr dns dnt drd dre drl drn drr drs drt dsd dse dsl dsn dsr dss dst dtd dte dtl dtn dtr dts dtt ed- edd ede edl edn edr eds edt eed eee eel een eer ees eet eld ele ell eln elr els elt en- end ene enl enn enr ens ent erd ere erl ern err ers ert es- esd ese esl esn esr ess est etd ete etl etn etr ets ett ldd lde ldl ldn ldr lds ldt led lee lel len ler les let lld lle lll lln llr lls llt lnd lne lnl lnn lnr lns lnt lrd lrn lrr lrs lrt lsd lse lsl lsn lsr lss lst ltd lte ltl ltr lts ltt ndd nde ndl ndn ndr nds ndt ne- ned nee nel nen ner nes net nld nle nll nln nlr nls nlt nne nnl nnn nns nnt nrd nre nrl nrn nrr nrs nrt nsd nse nsl nsn nsr nss nst ntd nte ntn ntr nts ntt rdd rde rdl rdn rdr rds rdt re- red ree rel ren rer res ret rld rle rll rln rlr rls rlt rnd rnn rnr rns rnt rrd rrl rrn rrr rrs rrt rsd rse rsl rsn rsr rss rst rtd rte rtl rtn rtr rts rtt sdd sde sdl sdn sdr sds sdt se- sed see sel sen ser ses set sld sle sll sln slr sls slt snd sne snl snn snr sns snt sr- srd sre srl srn srr srs srt ss- ssd sse ssl ssn ssr sss sst std ste stl stn str sts stt tdd tde tdl tdn tdr tds tdt te- ted tee tel ten ter tes tet tld tle tll tln tlr tls tlt tnd tne tnl tnn tnr tns tnt trd tre trl trn trr trs trt tsd tse tsl tsn tsr tss tst ttd tte ttl ttn ttr tts ttt