a-a a-c a-t aaa aac aad aae aao aat aav ac- aca acc acd ace aco act acv ad- ada adc add ade ado adt adv aea aec aed aee aeo aet aev aoa aoc aod aoe aoo aot aov at- ata atc atd ate ato att atv av- ava avc avd ave avo avt c-- caa cac cad cae cao cat cav cca ccc ccd cce cco cct ccv cda cdc cdd cde cdo cdt cdv ce- cea cec ced cee ceo cet cev co- coa coc cod coe coo cot cov cta ctc ctd cte cto ctt ctv cva cvc cvd cve cvo cvt cvv daa dac dad dae dao dat dav dca dcc dcd dce dco dct dcv dda ddc ddd dde ddo ddt de- dea dec ded dee deo det dev doa doc dod doe doo dot dov dta dtc dtd dte dto dtt dtv dva dvc dvd dve dvt eaa eac ead eae eao eat eav ec- eca ecc ecd ece eco ect ecv ed- eda edc edd ede edo edt eea eec eed eee eeo eet eev eo- eoa eoc eod eoe eoo eot eta etc etd ete eto ett etv eva evc evd eve evo evt evv oaa oac oad oae oao oat oav oc- oca occ ocd oco oct ocv oda odc odd ode odo odt odv oea oec oed oee oeo oet oo- ooa ooc ood ooo oot oov ot- ota otc otd ote oto ott otv ov- ova ovc ovd ove ovo ovv taa tac tad tae tao tat tav tca tcc tcd tce tco tct tcv tda tdc tdd tde tdo tdt tdv te- tea tec ted tee teo tet tev to- toa toc tod toe too tot tov tta ttc ttd tte tto ttt ttv tva tvc tvd tve tvo tvt v-a v-e vaa vac vad vae vao vat vav vca vcc vcd vce vco vct vdc vdd vde vdo vdt vdv vea vec ved vee veo vet voa voc vod voe voo vot vov vta vtc vte vto vtt vtv vva vvc vvo vvt vvv