-er ddd dde ddf ddi ddo ddr dds ddu de- ded dee def dei deo der des deu dfd dfe dff dfi dfo dfr dfs dfu di- did die dif dii dio dir dis diu dod doe dof doi doo dor dos dou drd dre dri dro drr drs dru dsd dse dsf dsi dso dsr dss dsu dud due duf dui duo dur dus ed- edd ede edf edi edo edr eds edu eed eee eef eeo eer ees ef- efd efe eff efi efo efr efs eid eie eif eii eio eir eis eiu eo- eod eoe eof eoi eoo eor eos eou erd ere erf eri ero err ers eru es- esd ese esf esi eso esr ess esu eu- eud eue euf eui eur eus fdd fde fdf fdi fdo fdr fds fdu fed fee fef fei feo fer fes feu ffd ffe fff ffi ffo ffr ffs ffu fid fie fif fii fir fis fiu foe fof foi foo for fos fou frd fre frf fri fro frr frs fru fsd fse fsf fsi fso fsr fss fsu fud fue fuf fui fuo fur fus fuu i-d i-f idd ide idf idi ido idr ids idu ie- ied iee ief iei ier ies ifd ife iff ifi ifo ifr ifs ifu iid iie iif iii iio iir iis iiu io- iod ioe iof ioi ioo ior ios iou ir- ird ire irf iri iro irr irs iru is- isd ise isf isi iso isr iss isu iu- iud iue iui iur ius o-i odd ode odf odi odo odr ods odu oed oee oef oei oeo oer oes of- ofd ofe off ofi ofo ofr ofs ofu oid oie oif oii oio oir ois oiu oo- ood oof ooi ooo oor oos or- ord ore orf ori oro orr ors oru os- osd ose osf osi oso osr oss osu ou- oud oue ouf oui ouo our ous rdd rde rdf rdi rdo rdr rds rdu re- red ree ref rei reo rer res reu rfd rfe rff rfi rfo rfr rfs rfu rid rie rif rii rio rir ris rod roe rof roi roo ror ros rou rrd rrf rri rrr rrs rru rsd rse rsf rsi rso rsr rss rsu rud rue ruf rui ruo rur rus ruu sdd sde sdf sdi sdo sdr sds sdu se- sed see sef sei seo ser ses seu sfd sfe sff sfi sfo sfr sfs sfu sid sie sif sii sio sir sis siu sod soe sof soi soo sor sos sou sr- srd sre srf sri sro srr srs ss- ssd sse ssf ssi sso ssr sss ssu sud sue suf sui suo sur sus suu udd ude udf udi udo udr uds udu ued uee uef uei uer ues ufd ufe uff ufi ufo ufr ufs ufu uid uie uif uii uio uir uis uiu uod uoe uoo uor uos ur- urd ure urf uri uro urr urs uru usd use usf usi uso usr uss usu uue uur uus uuu