a-a a-c a-t aaa aac aad aae aat ac- aca acc acd ace act ad- ada adc add ade adt aea aec aed aee aet at- ata atc atd ate att c-- caa cac cad cae cat cca ccc ccd cce cct cda cdc cdd cde cdt ce- cea cec ced cee cet cta ctc ctd cte ctt daa dac dad dae dat dca dcc dcd dce dct dda ddc ddd dde ddt de- dea dec ded dee det dta dtc dtd dte dtt eaa eac ead eae eat ec- eca ecc ecd ece ect ed- eda edc edd ede edt eea eec eed eee eet eta etc etd ete ett taa tac tad tae tat tca tcc tcd tce tct tda tdc tdd tde tdt te- tea tec ted tee tet tta ttc ttd tte ttt