-er a-a a-i aaa aad aae aaf aai aam aar aax ad- ada add ade adf adi adm adr adx aea aed aee aef aei aem aer aex af- afa afd afe aff afi afm afr afx ai- aia aid aie aif aii aim air aix ama amd ame amf ami amm amr amx ar- ara ard are arf ari arm arr arx ax- axa axe axi axm axr axx daa dad dae daf dai dam dar dax dda ddd dde ddf ddi ddm ddr ddx de- dea ded dee def dei dem der dex dfa dfd dfe dff dfi dfm dfr dfx di- dia did die dif dii dim dir dix dma dmd dme dmf dmi dmm dmr dmx dra drd dre dri drm drr drx dxd dxi dxr dxx eaa ead eae eaf eai eam ear eax ed- eda edd ede edf edi edm edr edx eea eed eee eef eem eer eex ef- efa efd efe eff efi efm efr efx eia eid eie eif eii eim eir eix em- ema emd eme emf emi emm emr emx era erd ere erf eri erm err ex- exa exd exe exi exr exx faa fad fae faf fai fam far fax fda fdd fde fdf fdi fdm fdr fdx fea fed fee fef fei fem fer fex ffa ffd ffe fff ffi ffm ffr ffx fia fid fie fif fii fim fir fix fma fmd fme fmf fmi fmm fmr fmx fra frd fre frf fri frm frr fxe fxi fxm fxr fxx i-d i-f ia- iaa iad iae iaf iai iam iar ida idd ide idf idi idm idr idx ie- iea ied iee ief iei iem ier iex ifa ifd ife iff ifi ifm ifr ifx iia iid iie iif iii iim iir iix im- ima imd ime imf imi imm imx ir- ira ird ire irf iri irm irr irx ixe ixi m-f m-r maa mad mae maf mai mam mar max mda mdd mde mdf mdi mdm mdr mdx mea med mee mef mei mem mer mex mfa mfd mfe mff mfi mfm mfr mi- mia mid mie mif mii mim mir mix mma mmd mme mmf mmi mmm mmr mmx mra mrd mre mrf mri mrm mrr mrx mxa mxd mxi mxr ra- raa rad rae raf rai ram rar rax rda rdd rde rdf rdi rdm rdr rdx re- rea red ree ref rei rem rer rex rfa rfd rfe rff rfi rfm rfr ria rid rie rif rii rim rir rix rma rmd rme rmf rmi rmm rmr rmx rra rrd rrf rri rrm rrr rxr xaa xad xaf xam xar xda xde xdf xdi xdm xdr xed xee xem xer xex xfa xfe xfm xfx xia xie xii xix xma xmd xmf xmi xmm xmr xmx xrd xrf xrx xxi xxx