-er ddd dde ddh ddi ddk ddn ddr ddx de- ded dee deh dei dek den der dex dh- dhd dhe dhh dhi dhk dhr di- did die dih dii dik din dir dix dke dki dkk dkr dkx dnd dne dnh dni dnk dnn dnr drd dre dri drk drn drr drx dxd dxi dxn dxr dxx ed- edd ede edh edi edk edn edr edx eed eee eek een eer eex ehd ehe ehh ehi ehn ehr eid eie eii eik ein eir eix ekd eke ekh eki ekr en- end ene enh eni enk enn enr erd ere erh eri erk ern err ex- exd exe exh exi exr exx h-i hdd hde hdh hdi hdk hdn hdr hdx he- hed hee heh hei hek hen her hex hhd hhe hhh hhi hhk hhn hhr hid hie hih hii hik hin hir hix hkd hkh hki hkk hkn hkr hnd hne hnh hnk hnn hr- hrd hre hrh hri hrk hrn hrr hxd i-d idd ide idh idi idk idn idr idx ie- ied iee iei iek ien ier iex ihd ihe ihh ihi ihk ihn ihr iid iie iih iii iin iir iix ike iki ikk ikr ikx in- ind ine inh ini ink inn inr inx ir- ird ire iri irk irn irr irx ixe ixi ixn kde kdh kdk kdr kdx ke- ked kee keh kei kek ken ker kex khe khh khi khk khn khr kid kie kih kii kik kin kir kix kke kkh kki kkk kkn kkr kn- knd kne kni knk knn knr knx krd kri krk krn krr n-i ndd nde ndh ndi ndk ndn ndr ne- ned nee neh nei nek nen ner nex nhd nhe nhh nhi nhk nhn nhr nid nie nih nii nik nin nir nix nke nki nkk nkn nkr nne nnh nni nnk nnn nrd nre nri nrk nrn nrr nrx nxd rdd rde rdh rdi rdn rdr rdx re- red ree reh rei rek ren rer rex rh- rhd rhe rhh rhi rhn rhr rid rie rih rii rik rin rir rix rke rkk rnd rnh rni rnn rnr rrd rrh rri rrk rrn rrr rxr xde xdh xdi xdk xdr xed xee xen xer xex xhd xie xii xin xix xke xnk xrd xrx xxi xxx