-er ddd dde ddg ddi ddn ddp ddr dds de- ded dee deg dei den dep der des dgd dge dgg dgi dgn dgp dgr dgs di- did die dig dii din dip dir dis dnd dne dng dni dnn dnp dnr dns dpd dpe dpg dpi dpn dpp dpr dps drd dre drg dri drn drp drr drs dsd dse dsg dsi dsn dsp dsr dss ed- edd ede edg edi edn edp edr eds eed eee eeg een eep eer ees egd ege egg egi egn egp egr egs eid eie eig eii ein eip eir eis en- end ene eng eni enn enp enr ens ep- epd epe epg epi epn epp epr eps erd ere erg eri ern erp err ers es- esd ese esg esi esn esp esr ess g-d g-p gdd gde gdi gdn gdp gdr gds ge- ged gee geg gei gen gep ger ges ggd ggg ggi ggn ggp ggr ggs gid gie gig gii gin gip gir gis gnd gne gni gnn gnp gnr gns gpd gpe gpg gpi gpn gpp gpr gps grd gre grg gri grn grp grr grs gsd gse gsg gsi gsn gsp gsr gss i-d idd ide idg idi idn idp idr ids ie- ied iee ieg iei ien iep ier ies igd ige igg igi ign igp igr igs iid iie iii iin iip iir iis in- ind ine ing ini inn inp inr ins ipd ipe ipg ipi ipn ipp ipr ips ir- ird ire irg iri irn irp irr irs is- isd ise isg isi isn isp isr iss n-i ndd nde ndg ndi ndn ndp ndr nds ne- ned nee neg nei nen nep ner nes ngd nge ngg ngi ngn ngp ngs nid nie nig nii nin nip nir nis nne nng nni nnn nnp nns npd npe npg npi npn npp npr nps nrd nre nrg nri nrn nrp nrr nrs nsd nse nsg nsi nsn nsp nsr nss p-p pdd pde pdg pdi pdn pdp pdr pds ped pee peg pei pen pep per pes pgd pge pgg pgi pgn pgp pgr pgs pid pie pig pii pin pip pir pis pn- pnd pne png pni pnn pnp pnr pns ppd ppe ppg ppi ppn ppp ppr pps prd pre prg pri prn prp prr prs ps- psd pse psg psi psn psp psr pss rdd rde rdg rdi rdn rdp rdr rds re- red ree reg rei ren rep rer res rgd rge rgg rgi rgn rgp rgr rgs rid rie rig rii rin rip rir ris rnd rng rni rnn rnp rnr rns rpd rpe rpg rpi rpn rpp rpr rps rrd rrg rri rrn rrp rrr rrs rsd rse rsg rsi rsn rsp rsr rss sdd sde sdg sdi sdn sdp sdr sds se- sed see seg sei sen sep ser ses sgd sge sgg sgi sgn sgp sgr sgs sid sie sig sii sin sip sir sis snd sne sng sni snn snp snr sns spd spe spg spi spn spp spr sps sr- srd sre srg sri srn srp srr srs ss- ssd sse ssg ssi ssn ssp ssr sss