-er ddd dde ddi ddm ddn ddr ddt ddx de- ded dee dei dem den der det dex di- did die dii dim din dir dit dix dmd dme dmi dmm dmn dmr dmt dmx dnd dne dni dnm dnn dnr dnt drd dre dri drm drn drr drt drx dtd dte dti dtm dtn dtr dtt dtx dxd dxi dxn dxr dxt dxx ed- edd ede edi edm edn edr edt edx eed eee eem een eer eet eex eid eie eii eim ein eir eit eix em- emd eme emi emm emn emr emt emx en- end ene eni enm enn enr ent erd ere eri erm ern err ert etd ete eti etm etn etr ett etx ex- exd exe exi exr ext exx i-d idd ide idi idm idn idr idt idx ie- ied iee iei iem ien ier iet iex iid iie iii iim iin iir iit iix im- imd ime imi imm imn imt imx in- ind ine ini inm inn inr int inx ir- ird ire iri irm irn irr irt irx itd ite iti itm itn itt itx ixe ixi ixn m-r mdd mde mdi mdm mdn mdr mdt mdx med mee mei mem men mer met mex mi- mid mie mii mim min mir mit mix mmd mme mmi mmm mmn mmr mmt mmx mne mni mnm mnn mnr mnt mrd mre mri mrm mrn mrr mrt mrx mtd mte mti mtm mtn mtr mtt mtx mxd mxi mxn mxr n-i ndd nde ndi ndm ndn ndr ndt ne- ned nee nei nem nen ner net nex nid nie nii nim nin nir nit nix nmd nme nmi nmm nmn nmr nmt nne nni nnm nnn nnt nrd nre nri nrm nrn nrr nrt nrx ntd nte nti ntm ntn ntr ntt ntx nxd nxt rdd rde rdi rdm rdn rdr rdt rdx re- red ree rei rem ren rer ret rex rid rie rii rim rin rir rit rix rmd rme rmi rmm rmn rmr rmt rmx rnd rni rnm rnn rnr rnt rrd rri rrm rrn rrr rrt rtd rte rti rtm rtn rtr rtt rtx rxr t-x tdd tde tdi tdm tdn tdr tdt tdx te- ted tee tei tem ten ter tet tex tid tie tii tim tin tir tit tix tmd tme tmi tmm tmn tmr tmt tmx tnd tne tni tnm tnn tnr tnt tnx trd tre tri trm trn trr trt trx ttd tte tti ttm ttn ttr ttt ttx txe txi txn txt xde xdi xdm xdr xdt xed xee xem xen xer xet xex xie xii xin xit xix xmd xmi xmm xmr xmt xmx xrd xrt xrx xti xtm xtr xtx xxi xxx