a-a a-c a-t aaa aac aae aaf aam aan aat ac- aca acc ace acf acm acn act aea aec aee aef aem aen aet af- afa afc afe aff afm afn aft ama amc ame amf amm amn amt an- ana anc ane anf anm ann ant at- ata atc ate atf atm atn att c-- caa cac cae caf cam can cat cca ccc cce ccf ccm ccn cct ce- cea cec cee cef cem cen cet cfa cfc cfe cff cfm cfn cft cma cmc cme cmf cmm cmn cmt cn- cna cnc cne cnf cnm cnn cnt cta ctc cte ctf ctm ctn ctt eaa eac eae eaf eam ean eat ec- eca ecc ece ecf ecm ecn ect eea eec eee eef eem een eet ef- efa efc efe eff efm eft em- ema emc eme emf emm emn emt en- ena enc ene enf enm enn ent eta etc ete etf etm etn ett faa fac fae faf fam fan fat fca fcc fce fcf fcm fcn fct fea fec fee fef fem fen fet ffa ffc ffe fff ffm ffn fft fma fmc fme fmf fmm fmn fmt fna fnc fne fnf fnm fnn fnt fta ftc fte ftf ftm ftn ftt m-f maa mac mae maf mam man mat mc- mca mcc mce mcf mcm mcn mct mea mec mee mef mem men met mfa mfc mfe mff mfm mfn mft mma mmc mme mmf mmm mmn mmt mna mnc mne mnf mnm mnn mnt mta mtc mte mtf mtm mtn mtt naa nac nae naf nam nan nat nca ncc nce ncf ncm ncn nct ne- nea nec nee nef nem nen net nfa nfc nfe nff nfn nft nma nmc nme nmm nmn nmt nna nnc nne nnf nnm nnn nnt nta ntc nte ntf ntm ntn ntt taa tac tae taf tam tan tat tca tcc tce tcf tcm tcn tct te- tea tec tee tef tem ten tet tfa tfc tfe tff tfm tfn tft tma tmc tme tmf tmm tmn tmt tna tnc tne tnf tnm tnn tnt tta ttc tte ttf ttm ttn ttt