a-a a-b aaa aab aad aae aaj aan ab- aba abb abd abe abj abn ad- ada adb add ade adj adn aea aeb aed aee aej aen aja ajb ajd aje ajj ajn an- ana anb and ane anj ann baa bab bad bae baj ban bba bbb bbd bbe bbn bda bdb bdd bde bdj be- bea beb bed bee ben bja bjd bjj bjn bna bnb bnd bne bnj bnn daa dab dad dae daj dan dba dbb dbd dbe dbn dda ddb ddd dde ddn de- dea deb ded dee dej den dj- dja djb djd dje dna dnb dnd dne dnj dnn eaa eab ead eae eaj ean eba ebb ebd ebe ebj ebn ed- eda edb edd ede edj edn eea eeb eed eee een eja ejd en- ena enb end ene enn j-d jaa jab jad jae jaj jan jba jbj jda jdb jde jdn jea jeb jed jee jej jen jja jjb jjj jna jnd jne jnj jnn naa nab nad nae naj nan nba nbb nbd nbe nbn nda ndb ndd nde ndn ne- nea neb ned nee nej nen nja nje njn nna nnb nne nnn