-er ddd dde ddg ddi ddn ddr dds de- ded dee deg dei den der des dgd dge dgg dgi dgn dgr dgs di- did die dig dii din dir dis dnd dne dng dni dnn dnr dns drd dre drg dri drn drr drs dsd dse dsg dsi dsn dsr dss ed- edd ede edg edi edn edr eds eed eee eeg een eer ees egd ege egg egi egn egr egs eid eie eig eii ein eir eis en- end ene eng eni enn enr ens erd ere erg eri ern err ers es- esd ese esg esi esn esr ess g-d gdd gde gdi gdn gdr gds ge- ged gee geg gei gen ger ges ggd ggg ggi ggn ggr ggs gid gie gig gii gin gir gis gnd gne gni gnn gnr gns grd gre grg gri grn grr grs gsd gse gsg gsi gsn gsr gss i-d idd ide idg idi idn idr ids ie- ied iee ieg iei ien ier ies igd ige igg igi ign igr igs iid iie iii iin iir iis in- ind ine ing ini inn inr ins ir- ird ire irg iri irn irr irs is- isd ise isg isi isn isr iss n-i ndd nde ndg ndi ndn ndr nds ne- ned nee neg nei nen ner nes ngd nge ngg ngi ngn ngs nid nie nig nii nin nir nis nne nng nni nnn nns nrd nre nrg nri nrn nrr nrs nsd nse nsg nsi nsn nsr nss rdd rde rdg rdi rdn rdr rds re- red ree reg rei ren rer res rgd rge rgg rgi rgn rgr rgs rid rie rig rii rin rir ris rnd rng rni rnn rnr rns rrd rrg rri rrn rrr rrs rsd rse rsg rsi rsn rsr rss sdd sde sdg sdi sdn sdr sds se- sed see seg sei sen ser ses sgd sge sgg sgi sgn sgr sgs sid sie sig sii sin sir sis snd sne sng sni snn snr sns sr- srd sre srg sri srn srr srs ss- ssd sse ssg ssi ssn ssr sss