ddd dde ddf ddi ddn ddp dds de- ded dee def dei den dep des dfd dfe dff dfi dfn dfp dfs di- did die dif dii din dip dis dnd dne dnf dni dnn dnp dns dpd dpe dpf dpi dpn dpp dps dsd dse dsf dsi dsn dsp dss ed- edd ede edf edi edn edp eds eed eee eef een eep ees ef- efd efe eff efi efp efs eid eie eif eii ein eip eis en- end ene enf eni enn enp ens ep- epd epe epf epi epn epp eps es- esd ese esf esi esn esp ess fdd fde fdf fdi fdn fdp fds fed fee fef fei fen fep fes ffd ffe fff ffi ffn ffp ffs fid fie fif fii fin fip fis fnd fne fnf fni fnn fnp fns fpd fpe fpi fpn fpp fps fsd fse fsf fsi fsn fsp fss i-d i-f idd ide idf idi idn idp ids ie- ied iee ief iei ien iep ies ifd ife iff ifi ifn ifp ifs iid iie iif iii iin iip iis in- ind ine inf ini inn inp ins ipd ipe ipf ipi ipn ipp ips is- isd ise isf isi isn isp iss n-i ndd nde ndf ndi ndn ndp nds ne- ned nee nef nei nen nep nes nfd nfe nff nfi nfn nfp nfs nid nie nif nii nin nip nis nne nnf nni nnn nnp nns npd npe npf npi npn npp nps nsd nse nsf nsi nsn nsp nss p-p pdd pde pdf pdi pdn pdp pds ped pee pef pei pen pep pes pfd pfe pff pfi pfn pfp pfs pid pie pif pii pin pip pis pn- pnd pne pnf pni pnn pnp pns ppd ppe ppf ppi ppn ppp pps ps- psd pse psf psi psn psp pss sdd sde sdf sdi sdn sdp sds se- sed see sef sei sen sep ses sfd sfe sff sfi sfn sfp sfs sid sie sif sii sin sip sis snd sne snf sni snn snp sns spd spe spf spi spn spp sps ss- ssd sse ssf ssi ssn ssp sss