a-a a-t aaa aad aae aag aao aat aax ad- ada add ade adg ado adt adx aea aed aee aeg aeo aet aex ag- aga agd age agg ago agt agx aoa aod aoe aog aoo aot aox at- ata atd ate atg ato att atx ax- axa axe axo axt axx daa dad dae dag dao dat dax dda ddd dde ddg ddo ddt ddx de- dea ded dee deg deo det dex dga dgd dge dgg dgt doa dod doe dog doo dot dox dta dtd dte dtg dto dtt dtx dxd dxo dxt dxx eaa ead eae eag eao eat eax ed- eda edd ede edg edo edt edx eea eed eee eeg eeo eet eex ega egd ege egg ego egt egx eo- eoa eod eoe eog eoo eot eta etd ete etg eto ett etx ex- exa exd exe exo ext exx g-d gaa gad gae gag gao gat gda gdd gde gdo gdt gdx ge- gea ged gee geg geo get gex gga ggd ggg ggo ggt goa god goe gog goo got gox gta gtd gte gtg gto gtt gtx gxa gxt oaa oad oae oag oao oat oax oda odd ode odg odo odt oea oed oee oeg oeo oet oex oga ogd oge ogg ogo ogt ogx oo- ooa ood oog ooo oot oox ot- ota otd ote otg oto ott ox- oxa oxo oxt oxx t-x taa tad tae tag tao tat tax tda tdd tde tdg tdo tdt tdx te- tea ted tee teg teo tet tex tga tge tgg tgo tgt to- toa tod toe tog too tot tox tta ttd tte ttg tto ttt ttx txe txt xaa xad xag xat xda xde xdt xed xee xeg xet xex xge xoa xod xog xoo xot xox xtx xxo xxx