-er ddd dde ddf ddi ddn ddp ddr dds de- ded dee def dei den dep der des dfd dfe dff dfi dfn dfp dfr dfs di- did die dif dii din dip dir dis dnd dne dnf dni dnn dnp dnr dns dpd dpe dpf dpi dpn dpp dpr dps drd dre dri drn drp drr drs dsd dse dsf dsi dsn dsp dsr dss ed- edd ede edf edi edn edp edr eds eed eee eef een eep eer ees ef- efd efe eff efi efp efr efs eid eie eif eii ein eip eir eis en- end ene enf eni enn enp enr ens ep- epd epe epf epi epn epp epr eps erd ere erf eri ern erp err ers es- esd ese esf esi esn esp esr ess fdd fde fdf fdi fdn fdp fdr fds fed fee fef fei fen fep fer fes ffd ffe fff ffi ffn ffp ffr ffs fid fie fif fii fin fip fir fis fnd fne fnf fni fnn fnp fnr fns fpd fpe fpi fpn fpp fpr fps frd fre frf fri frn frp frr frs fsd fse fsf fsi fsn fsp fsr fss i-d i-f idd ide idf idi idn idp idr ids ie- ied iee ief iei ien iep ier ies ifd ife iff ifi ifn ifp ifr ifs iid iie iif iii iin iip iir iis in- ind ine inf ini inn inp inr ins ipd ipe ipf ipi ipn ipp ipr ips ir- ird ire irf iri irn irp irr irs is- isd ise isf isi isn isp isr iss n-i ndd nde ndf ndi ndn ndp ndr nds ne- ned nee nef nei nen nep ner nes nfd nfe nff nfi nfn nfp nfr nfs nid nie nif nii nin nip nir nis nne nnf nni nnn nnp nns npd npe npf npi npn npp npr nps nrd nre nrf nri nrn nrp nrr nrs nsd nse nsf nsi nsn nsp nsr nss p-p pdd pde pdf pdi pdn pdp pdr pds ped pee pef pei pen pep per pes pfd pfe pff pfi pfn pfp pfr pfs pid pie pif pii pin pip pir pis pn- pnd pne pnf pni pnn pnp pnr pns ppd ppe ppf ppi ppn ppp ppr pps prd pre prf pri prn prp prr prs ps- psd pse psf psi psn psp psr pss rdd rde rdf rdi rdn rdp rdr rds re- red ree ref rei ren rep rer res rfd rfe rff rfi rfn rfp rfr rfs rid rie rif rii rin rip rir ris rnd rni rnn rnp rnr rns rpd rpe rpf rpi rpn rpp rpr rps rrd rrf rri rrn rrp rrr rrs rsd rse rsf rsi rsn rsp rsr rss sdd sde sdf sdi sdn sdp sdr sds se- sed see sef sei sen sep ser ses sfd sfe sff sfi sfn sfp sfr sfs sid sie sif sii sin sip sir sis snd sne snf sni snn snp snr sns spd spe spf spi spn spp spr sps sr- srd sre srf sri srn srp srr srs ss- ssd sse ssf ssi ssn ssp ssr sss