ddd dde ddi ddn ddp ddt ddx de- ded dee dei den dep det dex di- did die dii din dip dit dix dnd dne dni dnn dnp dnt dpd dpe dpi dpn dpp dpt dtd dte dti dtn dtp dtt dtx dxd dxi dxn dxp dxt dxx ed- edd ede edi edn edp edt edx eed eee een eep eet eex eid eie eii ein eip eit eix en- end ene eni enn enp ent ep- epd epe epi epn epp ept epx etd ete eti etn etp ett etx ex- exd exe exi exp ext exx i-d idd ide idi idn idp idt idx ie- ied iee iei ien iep iet iex iid iie iii iin iip iit iix in- ind ine ini inn inp int inx ipd ipe ipi ipn ipp ipt ipx itd ite iti itn itp itt itx ixe ixi ixn n-i ndd nde ndi ndn ndp ndt ne- ned nee nei nen nep net nex nid nie nii nin nip nit nix nne nni nnn nnp nnt npd npe npi npn npp npt ntd nte nti ntn ntp ntt ntx nxd nxt p-p pdd pde pdi pdn pdp pdt pdx ped pee pei pen pep pet pex pid pie pii pin pip pit pix pn- pnd pne pni pnn pnp pnt pnx ppd ppe ppi ppn ppp ppt ppx pt- ptd pte pti ptn ptp ptt ptx pxe pxt t-x tdd tde tdi tdn tdp tdt tdx te- ted tee tei ten tep tet tex tid tie tii tin tip tit tix tnd tne tni tnn tnp tnt tnx tpd tpe tpi tpn tpp tpt tpx ttd tte tti ttn ttp ttt ttx txe txi txn txt xde xdi xdt xed xee xen xep xet xex xie xii xin xit xix xpd xpe xpn xpp xpt xti xtp xtx xxi xxp xxx