a-a a-c a-t aaa aac aad aae aan aao aat ac- aca acc acd ace acn aco act ad- ada adc add ade adn ado adt aea aec aed aee aen aeo aet an- ana anc and ane ann ano ant aoa aoc aod aoe aon aoo aot at- ata atc atd ate atn ato att c-- caa cac cad cae can cao cat cca ccc ccd cce ccn cco cct cda cdc cdd cde cdn cdo cdt ce- cea cec ced cee cen ceo cet cn- cna cnc cnd cne cnn cno cnt co- coa coc cod coe con coo cot cta ctc ctd cte ctn cto ctt daa dac dad dae dan dao dat dca dcc dcd dce dcn dco dct dda ddc ddd dde ddn ddo ddt de- dea dec ded dee den deo det dna dnc dnd dne dnn dno dnt doa doc dod doe don doo dot dta dtc dtd dte dtn dto dtt eaa eac ead eae ean eao eat ec- eca ecc ecd ece ecn eco ect ed- eda edc edd ede edn edo edt eea eec eed eee een eeo eet en- ena enc end ene enn eno ent eo- eoa eoc eod eoe eon eoo eot eta etc etd ete etn eto ett naa nac nad nae nan nao nat nca ncc ncd nce ncn nco nct nda ndc ndd nde ndn ndo ndt ne- nea nec ned nee nen neo net nna nnc nne nnn nno nnt no- noa noc nod noe non noo not nta ntc ntd nte ntn nto ntt oaa oac oad oae oan oao oat oc- oca occ ocd ocn oco oct oda odc odd ode odn odo odt oea oec oed oee oen oeo oet on- ona onc ond one onn ono ont oo- ooa ooc ood oon ooo oot ot- ota otc otd ote otn oto ott taa tac tad tae tan tao tat tca tcc tcd tce tcn tco tct tda tdc tdd tde tdn tdo tdt te- tea tec ted tee ten teo tet tna tnc tnd tne tnn tno tnt to- toa toc tod toe ton too tot tta ttc ttd tte ttn tto ttt