-er ddd dde ddf ddi ddo ddr dds ddt ddu de- ded dee def dei deo der des det deu dfd dfe dff dfi dfo dfr dfs dft dfu di- did die dif dii dio dir dis dit diu dod doe dof doi doo dor dos dot dou drd dre dri dro drr drs drt dru dsd dse dsf dsi dso dsr dss dst dsu dtd dte dtf dti dto dtr dts dtt dtu dud due duf dui duo dur dus dut ed- edd ede edf edi edo edr eds edt edu eed eee eef eeo eer ees eet ef- efd efe eff efi efo efr efs eft eid eie eif eii eio eir eis eit eiu eo- eod eoe eof eoi eoo eor eos eot eou erd ere erf eri ero err ers ert eru es- esd ese esf esi eso esr ess est esu etd ete etf eti eto etr ets ett etu eu- eud eue euf eui eur eus eut fdd fde fdf fdi fdo fdr fds fdt fdu fed fee fef fei feo fer fes fet feu ffd ffe fff ffi ffo ffr ffs fft ffu fid fie fif fii fir fis fit fiu foe fof foi foo for fos fot fou frd fre frf fri fro frr frs frt fru fsd fse fsf fsi fso fsr fss fst fsu ftd fte ftf fti fto ftr fts ftt ftu fud fue fuf fui fuo fur fus fut fuu i-d i-f idd ide idf idi ido idr ids idt idu ie- ied iee ief iei ier ies iet ifd ife iff ifi ifo ifr ifs ift ifu iid iie iif iii iio iir iis iit iiu io- iod ioe iof ioi ioo ior ios iot iou ir- ird ire irf iri iro irr irs irt iru is- isd ise isf isi iso isr iss ist isu itd ite itf iti ito its itt itu iu- iud iue iui iur ius iut o-i odd ode odf odi odo odr ods odt odu oed oee oef oei oeo oer oes oet of- ofd ofe off ofi ofo ofr ofs oft ofu oid oie oif oii oio oir ois oit oiu oo- ood oof ooi ooo oor oos oot or- ord ore orf ori oro orr ors ort oru os- osd ose osf osi oso osr oss ost osu ot- otd ote otf oti oto otr ots ott otu ou- oud oue ouf oui ouo our ous out rdd rde rdf rdi rdo rdr rds rdt rdu re- red ree ref rei reo rer res ret reu rfd rfe rff rfi rfo rfr rfs rft rfu rid rie rif rii rio rir ris rit rod roe rof roi roo ror ros rot rou rrd rrf rri rrr rrs rrt rru rsd rse rsf rsi rso rsr rss rst rsu rtd rte rtf rti rto rtr rts rtt rtu rud rue ruf rui ruo rur rus rut ruu sdd sde sdf sdi sdo sdr sds sdt sdu se- sed see sef sei seo ser ses set seu sfd sfe sff sfi sfo sfr sfs sft sfu sid sie sif sii sio sir sis sit siu sod soe sof soi soo sor sos sot sou sr- srd sre srf sri sro srr srs srt ss- ssd sse ssf ssi sso ssr sss sst ssu std ste stf sti sto str sts stt stu sud sue suf sui suo sur sus sut suu tdd tde tdf tdi tdo tdr tds tdt tdu te- ted tee tef tei teo ter tes tet teu tfd tfe tff tfi tfo tfr tfs tft tfu tid tie tif tii tio tir tis tit tiu to- tod toe tof toi too tor tos tot tou trd tre trf tri tro trr trs trt tru tsd tse tsf tsi tso tsr tss tst tsu ttd tte ttf tti tto ttr tts ttt ttu tud tue tuf tui tuo tur tus tut tuu udd ude udf udi udo udr uds udt udu ued uee uef uei uer ues uet ufd ufe uff ufi ufo ufr ufs uft ufu uid uie uif uii uio uir uis uit uiu uod uoe uoo uor uos uot ur- urd ure urf uri uro urr urs urt uru usd use usf usi uso usr uss ust usu utd ute utf uti uto utr uts utt utu uue uur uus uut uuu