a-a aaa aad aae aaf aam aan ad- ada add ade adf adm adn aea aed aee aef aem aen af- afa afd afe aff afm afn ama amd ame amf amm amn an- ana and ane anf anm ann daa dad dae daf dam dan dda ddd dde ddf ddm ddn de- dea ded dee def dem den dfa dfd dfe dff dfm dfn dma dmd dme dmf dmm dmn dna dnd dne dnf dnm dnn eaa ead eae eaf eam ean ed- eda edd ede edf edm edn eea eed eee eef eem een ef- efa efd efe eff efm em- ema emd eme emf emm emn en- ena end ene enf enm enn faa fad fae faf fam fan fda fdd fde fdf fdm fdn fea fed fee fef fem fen ffa ffd ffe fff ffm ffn fma fmd fme fmf fmm fmn fna fnd fne fnf fnm fnn m-f maa mad mae maf mam man mda mdd mde mdf mdm mdn mea med mee mef mem men mfa mfd mfe mff mfm mfn mma mmd mme mmf mmm mmn mna mne mnf mnm mnn naa nad nae naf nam nan nda ndd nde ndf ndm ndn ne- nea ned nee nef nem nen nfa nfd nfe nff nfn nma nmd nme nmm nmn nna nne nnf nnm nnn