-ey a-a a-b aaa aab aad aae aak aan aay ab- aba abb abd abe abk abn aby ad- ada adb add ade adk adn ady aea aeb aed aee aek aen aey aka akb akd ake akk akn an- ana anb and ane ank ann any ay- aya ayd aye ayk ayn baa bab bad bae bak ban bay bba bbb bbd bbe bbk bbn bby bda bdb bdd bde bdk bdy be- bea beb bed bee bek ben bey bka bkb bke bkk bkn bna bnb bnd bne bnk bnn by- bya byd bye byk byn daa dab dad dae dak dan day dba dbb dbd dbe dbk dbn dby dda ddb ddd dde ddk ddn ddy de- dea deb ded dee dek den dey dka dkb dke dkk dna dnb dnd dne dnk dnn dny dy- dya dyb dyd dye dyk dyn dyy eaa eab ead eae eak ean eba ebb ebd ebe ebk ebn eby ed- eda edb edd ede edk edn edy eea eeb eed eee eek een eey eka ekb ekd eke eky en- ena enb end ene enk enn eny eya eyd eye eyn ka- kaa kab kad kae kak kan kay kba kbb kbd kbe kbk kbn kda kdb kde kdk kdy ke- kea keb ked kee kek ken key kkb kke kkk kkn kky kn- kna knd kne knk knn kya kyd kye kyn naa nab nad nae nak nan nay nba nbb nbd nbe nbk nbn nda ndb ndd nde ndk ndn ndy ne- nea neb ned nee nek nen ney nka nke nkk nkn nky nna nnb nne nnk nnn nya nyd nye nyk nyn nyy yaa yab yad yae yak yan yay ybe yby yda yde ydn ydy yea yeb yed yee yek yen yey yka ykk ykn yna ynd yne ynk ynn yny yyb yye yyy