-er ddd dde ddf ddg ddi ddr dds ddu de- ded dee def deg dei der des deu dfd dfe dff dfg dfi dfr dfs dfu dgd dge dgf dgg dgi dgr dgs dgu di- did die dif dig dii dir dis diu drd dre drg dri drr drs dru dsd dse dsf dsg dsi dsr dss dsu dud due duf dug dui dur dus ed- edd ede edf edg edi edr eds edu eed eee eef eeg eer ees ef- efd efe eff efg efi efr efs egd ege egf egg egi egr egs egu eid eie eif eig eii eir eis eiu erd ere erf erg eri err ers eru es- esd ese esf esg esi esr ess esu eu- eud eue euf eug eui eur eus fdd fde fdf fdg fdi fdr fds fdu fed fee fef feg fei fer fes feu ffd ffe fff ffg ffi ffr ffs ffu fgd fge fgf fgg fgi fgr fgs fid fie fif fig fii fir fis fiu frd fre frf frg fri frr frs fru fsd fse fsf fsg fsi fsr fss fsu fud fue fuf fug fui fur fus fuu g-d gdd gde gdf gdi gdr gds gdu ge- ged gee gef geg gei ger ges geu gfd gfe gff gfi gfr gfs ggd ggg ggi ggr ggs ggu gid gie gif gig gii gir gis giu grd gre grf grg gri grr grs gru gsd gse gsf gsg gsi gsr gss gsu gu- gud gue guf gug gui gur gus guu i-d i-f idd ide idf idg idi idr ids idu ie- ied iee ief ieg iei ier ies ifd ife iff ifg ifi ifr ifs ifu igd ige igf igg igi igr igs igu iid iie iif iii iir iis iiu ir- ird ire irf irg iri irr irs iru is- isd ise isf isg isi isr iss isu iu- iud iue iug iui iur ius rdd rde rdf rdg rdi rdr rds rdu re- red ree ref reg rei rer res reu rfd rfe rff rfg rfi rfr rfs rfu rgd rge rgf rgg rgi rgr rgs rid rie rif rig rii rir ris rrd rrf rrg rri rrr rrs rru rsd rse rsf rsg rsi rsr rss rsu rud rue ruf rug rui rur rus ruu sdd sde sdf sdg sdi sdr sds sdu se- sed see sef seg sei ser ses seu sfd sfe sff sfg sfi sfr sfs sfu sgd sge sgf sgg sgi sgr sgs sgu sid sie sif sig sii sir sis siu sr- srd sre srf srg sri srr srs ss- ssd sse ssf ssg ssi ssr sss ssu sud sue suf sug sui sur sus suu udd ude udf udg udi udr uds udu ued uee uef ueg uei uer ues ufd ufe uff ufg ufi ufr ufs ufu uge ugf ugg ugi ugr ugs ugu uid uie uif uig uii uir uis uiu ur- urd ure urf urg uri urr urs uru usd use usf usg usi usr uss usu uue uug uur uus uuu