a-a a-b a-t aaa aab aad aae aan aat aaw ab- aba abb abd abe abn abt abw ad- ada adb add ade adn adt adw aea aeb aed aee aen aet aew an- ana anb and ane ann ant at- ata atb atd ate atn att atw aw- awa awb awd awe awn awt aww baa bab bad bae ban bat baw bba bbb bbd bbe bbn bbt bbw bda bdb bdd bde bdt bdw be- bea beb bed bee ben bet bew bna bnb bnd bne bnn bnt bnw bta btb btd bte btn btt btw bwa bwb bwd daa dab dad dae dan dat daw dba dbb dbd dbe dbn dbt dda ddb ddd dde ddn ddt ddw de- dea deb ded dee den det dew dna dnb dnd dne dnn dnt dnw dta dtb dtd dte dtn dtt dtw dwa dwb dwe dwn dwt dww eaa eab ead eae ean eat eaw eba ebb ebd ebe ebn ebt ebw ed- eda edb edd ede edn edt edw eea eeb eed eee een eet eew en- ena enb end ene enn ent enw eta etb etd ete etn ett etw ewa ewb ewd ewe ewt eww naa nab nad nae nan nat naw nba nbb nbd nbe nbn nbt nbw nda ndb ndd nde ndn ndt ne- nea neb ned nee nen net new nna nnb nne nnn nnt nnw nta ntb ntd nte ntn ntt nwa nwb nwd nwe nwn nwt taa tab tad tae tan tat taw tba tbb tbd tbe tbn tbt tda tdb tdd tde tdn tdt tdw te- tea teb ted tee ten tet tew tna tnb tnd tne tnn tnt tnw tta ttb ttd tte ttn ttt ttw twa twb twd twe twn twt tww waa wab wad wae wan wat waw wba wbb wbd wbe wbn wbt wbw wda wdb wdt wea web wed wee wen wet wew wn- wna wnd wne wnn wnt wnw wta wtb wtd wtn wtt wtw wwa wwd wwe wwn wwt www