a-a a-c a-t aaa aac aad aae aan aat ac- aca acc acd ace acn act ad- ada adc add ade adn adt aea aec aed aee aen aet an- ana anc and ane ann ant at- ata atc atd ate atn att c-- caa cac cad cae can cat cca ccc ccd cce ccn cct cda cdc cdd cde cdn cdt ce- cea cec ced cee cen cet cn- cna cnc cnd cne cnn cnt cta ctc ctd cte ctn ctt daa dac dad dae dan dat dca dcc dcd dce dcn dct dda ddc ddd dde ddn ddt de- dea dec ded dee den det dna dnc dnd dne dnn dnt dta dtc dtd dte dtn dtt eaa eac ead eae ean eat ec- eca ecc ecd ece ecn ect ed- eda edc edd ede edn edt eea eec eed eee een eet en- ena enc end ene enn ent eta etc etd ete etn ett naa nac nad nae nan nat nca ncc ncd nce ncn nct nda ndc ndd nde ndn ndt ne- nea nec ned nee nen net nna nnc nne nnn nnt nta ntc ntd nte ntn ntt taa tac tad tae tan tat tca tcc tcd tce tcn tct tda tdc tdd tde tdn tdt te- tea tec ted tee ten tet tna tnc tnd tne tnn tnt tta ttc ttd tte ttn ttt