-ey a-a a-c a-t aaa aac aad aae aat aay ac- aca acc acd ace act acy ad- ada adc add ade adt ady aea aec aed aee aet aey at- ata atc atd ate att ay- aya ayc ayd aye ayt c-- caa cac cad cae cat cay cca ccc ccd cce cct cda cdc cdd cde cdt cdy ce- cea cec ced cee cet cey cta ctc ctd cte ctt cty cya cyc cyd cye cyt daa dac dad dae dat day dca dcc dcd dce dct dda ddc ddd dde ddt ddy de- dea dec ded dee det dey dta dtc dtd dte dtt dty dy- dya dyc dyd dye dyy eaa eac ead eae eat ec- eca ecc ecd ece ect ed- eda edc edd ede edt edy eea eec eed eee eet eey eta etc etd ete ett ety eya eyc eyd eye eyt taa tac tad tae tat tay tca tcc tcd tce tct tda tdc tdd tde tdt tdy te- tea tec ted tee tet tey tta ttc ttd tte ttt tty tya tyc tyd tye tyt yaa yac yad yae yat yay yca ycc ycd yce ycy yda yde ydt ydy yea yec yed yee yet yey yta ytc ytd yte ytt yyc yye yyt yyy