a-a a-b a-q aaa aab aad aae aah aan aaq ab- aba abb abd abe abh abn abq ad- ada adb add ade adh adn adq aea aeb aed aee aeh aen aeq aha ahb ahd ahe ahh ahn ahq an- ana anb and ane anh ann anq aqa aqn baa bab bad bae bah ban baq bba bbb bbd bbe bbh bbn bbq bda bdb bdd bde bdh bdq be- bea beb bed bee beh ben beq bha bhb bhd bhe bhh bhq bna bnb bnd bne bnn bqd bqe daa dab dad dae dah dan daq dba dbb dbd dbe dbh dbn dbq dda ddb ddd dde ddh ddn ddq de- dea deb ded dee deh den deq dh- dha dhb dhd dhe dhh dna dnb dnd dne dnh dnn dnq dqa dqe dqn eaa eab ead eae eah ean eba ebb ebd ebe ebh ebn ebq ed- eda edb edd ede edh edn eea eeb eed eee een eha ehb ehd ehe ehh ehn en- ena enb end ene enh enn eqa eqe eqn eqq haa hab had hae hah han haq hba hbb hbd hbe hbh hbn hda hdb hdd hde hdh hdn he- hea heb hed hee heh hen hha hhb hhd hhe hhh hhn hna hnb hnd hne hnh hnn naa nab nad nae nah nan nba nbb nbd nbe nbn nda ndb ndd nde ndh ndn ne- nea neb ned nee neh nen nha nhb nhd nhe nhh nhn nna nnb nne nnh nnn qaa qad qah qan qba qbd qbe qbq qda qdb qed qee qeh qen qnb qnd qne qnh qqq