ddd dde ddi ddn ddp dds ddt de- ded dee dei den dep des det di- did die dii din dip dis dit dnd dne dni dnn dnp dns dnt dpd dpe dpi dpn dpp dps dpt dsd dse dsi dsn dsp dss dst dtd dte dti dtn dtp dts dtt ed- edd ede edi edn edp eds edt eed eee een eep ees eet eid eie eii ein eip eis eit en- end ene eni enn enp ens ent ep- epd epe epi epn epp eps ept es- esd ese esi esn esp ess est etd ete eti etn etp ets ett i-d idd ide idi idn idp ids idt ie- ied iee iei ien iep ies iet iid iie iii iin iip iis iit in- ind ine ini inn inp ins int ipd ipe ipi ipn ipp ips ipt is- isd ise isi isn isp iss ist itd ite iti itn itp its itt n-i ndd nde ndi ndn ndp nds ndt ne- ned nee nei nen nep nes net nid nie nii nin nip nis nit nne nni nnn nnp nns nnt npd npe npi npn npp nps npt nsd nse nsi nsn nsp nss nst ntd nte nti ntn ntp nts ntt p-p pdd pde pdi pdn pdp pds pdt ped pee pei pen pep pes pet pid pie pii pin pip pis pit pn- pnd pne pni pnn pnp pns pnt ppd ppe ppi ppn ppp pps ppt ps- psd pse psi psn psp pss pst pt- ptd pte pti ptn ptp pts ptt sdd sde sdi sdn sdp sds sdt se- sed see sei sen sep ses set sid sie sii sin sip sis sit snd sne sni snn snp sns snt spd spe spi spn spp sps spt ss- ssd sse ssi ssn ssp sss sst std ste sti stn stp sts stt tdd tde tdi tdn tdp tds tdt te- ted tee tei ten tep tes tet tid tie tii tin tip tis tit tnd tne tni tnn tnp tns tnt tpd tpe tpi tpn tpp tps tpt tsd tse tsi tsn tsp tss tst ttd tte tti ttn ttp tts ttt