-er ddd dde ddf ddi ddl ddr dds ddu de- ded dee def dei del der des deu dfd dfe dff dfi dfl dfr dfs dfu di- did die dif dii dil dir dis diu dl- dld dle dlf dli dll dlr dls dlu drd dre dri drl drr drs dru dsd dse dsf dsi dsl dsr dss dsu dud due duf dui dul dur dus ed- edd ede edf edi edl edr eds edu eed eee eef eel eer ees ef- efd efe eff efi efl efr efs eid eie eif eii eil eir eis eiu eld ele elf eli ell elr els elu erd ere erf eri erl err ers eru es- esd ese esf esi esl esr ess esu eu- eud eue euf eui eul eur eus fdd fde fdf fdi fdl fdr fds fdu fed fee fef fei fel fer fes feu ffd ffe fff ffi ffl ffr ffs ffu fid fie fif fii fil fir fis fiu fld fle flf fli fll flr fls flu frd fre frf fri frl frr frs fru fsd fse fsf fsi fsl fsr fss fsu fud fue fuf fui ful fur fus fuu i-d i-f idd ide idf idi idl idr ids idu ie- ied iee ief iei iel ier ies ifd ife iff ifi ifl ifr ifs ifu iid iie iif iii iil iir iis iiu il- ild ile ilf ili ill ilr ils ilu ir- ird ire irf iri irl irr irs iru is- isd ise isf isi isl isr iss isu iu- iud iue iui iur ius ldd lde ldf ldi ldl ldr lds ldu led lee lef lei lel ler les leu lfd lfe lff lfi lfl lfr lfs lfu lid lie lif lii lil lir lis liu lld lle llf lli lll llr lls llu lrd lrf lri lrr lrs lru lsd lse lsf lsi lsl lsr lss lsu lud lue luf lui lul lur lus luu rdd rde rdf rdi rdl rdr rds rdu re- red ree ref rei rel rer res reu rfd rfe rff rfi rfl rfr rfs rfu rid rie rif rii ril rir ris rld rle rlf rli rll rlr rls rlu rrd rrf rri rrl rrr rrs rru rsd rse rsf rsi rsl rsr rss rsu rud rue ruf rui rur rus ruu sdd sde sdf sdi sdl sdr sds sdu se- sed see sef sei sel ser ses seu sfd sfe sff sfi sfl sfr sfs sfu sid sie sif sii sil sir sis siu sld sle slf sli sll slr sls slu sr- srd sre srf sri srl srr srs ss- ssd sse ssf ssi ssl ssr sss ssu sud sue suf sui sul sur sus suu udd ude udf udi udl udr uds udu ued uee uef uei uel uer ues ufd ufe uff ufi ufl ufr ufs ufu uid uie uif uii uil uir uis uiu uld ule ulf uli ull ulr uls ulu ur- urd ure urf uri url urr urs uru usd use usf usi usl usr uss usu uue uur uus uuu