-er ddd dde ddf ddg ddi ddl ddr dds de- ded dee def deg dei del der des dfd dfe dff dfg dfi dfl dfr dfs dgd dge dgf dgg dgi dgl dgr dgs di- did die dif dig dii dil dir dis dl- dld dle dlf dlg dli dll dlr dls drd dre drg dri drl drr drs dsd dse dsf dsg dsi dsl dsr dss ed- edd ede edf edg edi edl edr eds eed eee eef eeg eel eer ees ef- efd efe eff efg efi efl efr efs egd ege egf egg egi egl egr egs eid eie eif eig eii eil eir eis eld ele elf elg eli ell elr els erd ere erf erg eri erl err ers es- esd ese esf esg esi esl esr ess fdd fde fdf fdg fdi fdl fdr fds fed fee fef feg fei fel fer fes ffd ffe fff ffg ffi ffl ffr ffs fgd fge fgf fgg fgi fgl fgr fgs fid fie fif fig fii fil fir fis fld fle flf flg fli fll flr fls frd fre frf frg fri frl frr frs fsd fse fsf fsg fsi fsl fsr fss g-d gdd gde gdf gdi gdl gdr gds ge- ged gee gef geg gei gel ger ges gfd gfe gff gfi gfl gfr gfs ggd ggg ggi ggr ggs gid gie gif gig gii gil gir gis gld gle glf glg gli gll glr gls grd gre grf grg gri grl grr grs gsd gse gsf gsg gsi gsl gsr gss i-d i-f idd ide idf idg idi idl idr ids ie- ied iee ief ieg iei iel ier ies ifd ife iff ifg ifi ifl ifr ifs igd ige igf igg igi igl igr igs iid iie iif iii iil iir iis il- ild ile ilf ilg ili ill ilr ils ir- ird ire irf irg iri irl irr irs is- isd ise isf isg isi isl isr iss ldd lde ldf ldg ldi ldl ldr lds led lee lef leg lei lel ler les lfd lfe lff lfg lfi lfl lfr lfs lgd lge lgf lgg lgi lgl lgr lgs lid lie lif lig lii lil lir lis lld lle llf llg lli lll llr lls lrd lrf lrg lri lrr lrs lsd lse lsf lsg lsi lsl lsr lss rdd rde rdf rdg rdi rdl rdr rds re- red ree ref reg rei rel rer res rfd rfe rff rfg rfi rfl rfr rfs rgd rge rgf rgg rgi rgr rgs rid rie rif rig rii ril rir ris rld rle rlf rlg rli rll rlr rls rrd rrf rrg rri rrl rrr rrs rsd rse rsf rsg rsi rsl rsr rss sdd sde sdf sdg sdi sdl sdr sds se- sed see sef seg sei sel ser ses sfd sfe sff sfg sfi sfl sfr sfs sgd sge sgf sgg sgi sgl sgr sgs sid sie sif sig sii sil sir sis sld sle slf slg sli sll slr sls sr- srd sre srf srg sri srl srr srs ss- ssd sse ssf ssg ssi ssl ssr sss