a-a a-c a-t aaa aac aaf aam aat ac- aca acc acf acm act af- afa afc aff afm aft ama amc amf amm amt at- ata atc atf atm att c-- caa cac caf cam cat cca ccc ccf ccm cct cfa cfc cff cfm cft cma cmc cmf cmm cmt cta ctc ctf ctm ctt faa fac faf fam fat fca fcc fcf fcm fct ffa ffc fff ffm fft fma fmc fmf fmm fmt fta ftc ftf ftm ftt m-f maa mac maf mam mat mc- mca mcc mcf mcm mct mfa mfc mff mfm mft mma mmc mmf mmm mmt mta mtc mtf mtm mtt taa tac taf tam tat tca tcc tcf tcm tct tfa tfc tff tfm tft tma tmc tmf tmm tmt tta ttc ttf ttm ttt