a-a a-c a-t aaa aac aad aae aat aav ac- aca acc acd ace act acv ad- ada adc add ade adt adv aea aec aed aee aet aev at- ata atc atd ate att atv av- ava avc avd ave avt c-- caa cac cad cae cat cav cca ccc ccd cce cct ccv cda cdc cdd cde cdt cdv ce- cea cec ced cee cet cev cta ctc ctd cte ctt ctv cva cvc cvd cve cvt cvv daa dac dad dae dat dav dca dcc dcd dce dct dcv dda ddc ddd dde ddt de- dea dec ded dee det dev dta dtc dtd dte dtt dtv dva dvc dvd dve dvt eaa eac ead eae eat eav ec- eca ecc ecd ece ect ecv ed- eda edc edd ede edt eea eec eed eee eet eev eta etc etd ete ett etv eva evc evd eve evt evv taa tac tad tae tat tav tca tcc tcd tce tct tcv tda tdc tdd tde tdt tdv te- tea tec ted tee tet tev tta ttc ttd tte ttt ttv tva tvc tvd tve tvt v-a v-e vaa vac vad vae vat vav vca vcc vcd vce vct vdc vdd vde vdt vdv vea vec ved vee vet vta vtc vte vtt vtv vva vvc vvt vvv