a-a a-c a-t aaa aac aad aae aaf aan aao aat ac- aca acc acd ace acf acn aco act ad- ada adc add ade adf adn ado adt aea aec aed aee aef aen aeo aet af- afa afc afd afe aff afn afo aft an- ana anc and ane anf ann ano ant aoa aoc aod aoe aof aon aoo aot at- ata atc atd ate atf atn ato att c-- caa cac cad cae caf can cao cat cca ccc ccd cce ccf ccn cco cct cda cdc cdd cde cdf cdn cdo cdt ce- cea cec ced cee cef cen ceo cet cfa cfc cfd cfe cff cfn cfo cft cn- cna cnc cnd cne cnf cnn cno cnt co- coa coc cod coe cof con coo cot cta ctc ctd cte ctf ctn cto ctt daa dac dad dae daf dan dao dat dca dcc dcd dce dcf dcn dco dct dda ddc ddd dde ddf ddn ddo ddt de- dea dec ded dee def den deo det dfa dfc dfd dfe dff dfn dfo dft dna dnc dnd dne dnf dnn dno dnt doa doc dod doe dof don doo dot dta dtc dtd dte dtf dtn dto dtt eaa eac ead eae eaf ean eao eat ec- eca ecc ecd ece ecf ecn eco ect ed- eda edc edd ede edf edn edo edt eea eec eed eee eef een eeo eet ef- efa efc efd efe eff efo eft en- ena enc end ene enf enn eno ent eo- eoa eoc eod eoe eof eon eoo eot eta etc etd ete etf etn eto ett faa fac fad fae faf fan fao fat fca fcc fcd fce fcf fcn fco fct fda fdc fdd fde fdf fdn fdo fdt fea fec fed fee fef fen feo fet ffa ffc ffd ffe fff ffn ffo fft fna fnc fnd fne fnf fnn fnt foa foc foe fof fon foo fot fta ftc ftd fte ftf ftn fto ftt naa nac nad nae naf nan nao nat nca ncc ncd nce ncf ncn nco nct nda ndc ndd nde ndf ndn ndo ndt ne- nea nec ned nee nef nen neo net nfa nfc nfd nfe nff nfn nfo nft nna nnc nne nnf nnn nno nnt no- noa noc nod noe nof non noo not nta ntc ntd nte ntf ntn nto ntt oaa oac oad oae oaf oan oao oat oc- oca occ ocd ocf ocn oco oct oda odc odd ode odf odn odo odt oea oec oed oee oef oen oeo oet of- ofa ofc ofd ofe off ofn ofo oft on- ona onc ond one onf onn ono ont oo- ooa ooc ood oof oon ooo oot ot- ota otc otd ote otf otn oto ott taa tac tad tae taf tan tao tat tca tcc tcd tce tcf tcn tco tct tda tdc tdd tde tdf tdn tdo tdt te- tea tec ted tee tef ten teo tet tfa tfc tfd tfe tff tfn tfo tft tna tnc tnd tne tnf tnn tno tnt to- toa toc tod toe tof ton too tot tta ttc ttd tte ttf ttn tto ttt