a-a a-c a-t aaa aac aad aae aak aan aao aat ac- aca acc acd ace ack acn aco act ad- ada adc add ade adk adn ado adt aea aec aed aee aek aen aeo aet aka akc akd ake akk akn ako an- ana anc and ane ank ann ano ant aoa aoc aod aoe aok aon aoo aot at- ata atc atd ate atn ato att c-- caa cac cad cae cak can cao cat cca ccc ccd cce cck ccn cco cct cda cdc cdd cde cdk cdn cdo cdt ce- cea cec ced cee cek cen ceo cet cka ckc ckd cko ckt cn- cna cnc cnd cne cnn cno cnt co- coa coc cod coe cok con coo cot cta ctc ctd cte ctk ctn cto ctt daa dac dad dae dak dan dao dat dca dcc dcd dce dck dcn dco dct dda ddc ddd dde ddk ddn ddo ddt de- dea dec ded dee dek den deo det dka dkc dke dkk dko dkt dna dnc dnd dne dnk dnn dno dnt doa doc dod doe dok don doo dot dta dtc dtd dte dtk dtn dto dtt eaa eac ead eae eak ean eao eat ec- eca ecc ecd ece eck ecn eco ect ed- eda edc edd ede edk edn edo edt eea eec eed eee eek een eeo eet eka ekc ekd eke eko ekt en- ena enc end ene enk enn eno ent eo- eoa eoc eod eoe eok eon eoo eot eta etc etd ete etk etn eto ett k-t ka- kaa kac kad kae kak kan kao kat kca kcc kcd kce kck kcn kct kda kdc kde kdk kdo kdt ke- kea kec ked kee kek ken keo ket kkc kke kkk kkn kkt kn- kna knc knd kne knk knn kno knt koa koc kod koe kok kon koo kot kta ktc kte ktk ktn kto ktt naa nac nad nae nak nan nao nat nca ncc ncd nce nck ncn nco nct nda ndc ndd nde ndk ndn ndo ndt ne- nea nec ned nee nek nen neo net nka nkc nke nkk nkn nko nkt nna nnc nne nnk nnn nno nnt no- noa noc nod noe nok non noo not nta ntc ntd nte ntk ntn nto ntt oaa oac oad oae oak oan oao oat oc- oca occ ocd ock ocn oco oct oda odc odd ode odn odo odt oea oec oed oee oen oeo oet oka okc okd oke okk oko on- ona onc ond one onk onn ono ont oo- ooa ooc ood ook oon ooo oot ot- ota otc otd ote otk otn oto ott taa tac tad tae tak tan tao tat tca tcc tcd tce tck tcn tco tct tda tdc tdd tde tdk tdn tdo tdt te- tea tec ted tee tek ten teo tet tka tkc tke tkk tko tkt tna tnc tnd tne tnk tnn tno tnt to- toa toc tod toe tok ton too tot tta ttc ttd tte ttk ttn tto ttt