a-a a-b a-q aaa aab aad aae aan aao aaq aau ab- aba abb abd abe abn abo abq abu ad- ada adb add ade adn ado adq adu aea aeb aed aee aen aeo aeq aeu an- ana anb and ane ann ano anq anu aoa aob aod aoe aon aoo aou aqa aqn aqo au- aua aub aud aue aun auo b-u baa bab bad bae ban bao baq bau bba bbb bbd bbe bbn bbo bbq bbu bda bdb bdd bde bdo bdq bdu be- bea beb bed bee ben beo beq beu bna bnb bnd bne bnn bno bnu boa bob bod boe bon boo boq bou bqd bqe bua bub bud bue bun buo buu daa dab dad dae dan dao daq dau dba dbb dbd dbe dbn dbo dbq dbu dda ddb ddd dde ddn ddo ddq ddu de- dea deb ded dee den deo deq deu dna dnb dnd dne dnn dno dnq doa dob dod doe don doo doq dou dqa dqe dqn dua dub dud due dun duo eaa eab ead eae ean eao eau eba ebb ebd ebe ebn ebo ebq ebu ed- eda edb edd ede edn edo edu eea eeb eed eee een eeo en- ena enb end ene enn eno enu eo- eoa eob eod eoe eon eoo eoq eou eqa eqe eqn eqq equ eu- eua eub eud eue eun naa nab nad nae nan nao nau nba nbb nbd nbe nbn nbo nbu nda ndb ndd nde ndn ndo ndu ne- nea neb ned nee nen neo neu nna nnb nne nnn nno nnu no- noa nob nod noe non noo nou nua nub nud nue nun nuo nuq nuu oaa oab oad oae oan oao oaq oau ob- oba obb obd obe obn obo obu oda odb odd ode odn odo odu oea oeb oed oee oen oeo on- ona onb ond one onn ono onu oo- ooa oob ood oon ooo oqb oqo ou- oua oud oue oun ouo qaa qad qan qau qba qbd qbe qbq qda qdb qed qee qen qeo qnb qnd qne qoo qqq qqu qu- qua qud que quo ua- uaa uab uad uae uan uao uaq uau uba ubb ube ubn ubo ubu uda udb udd ude udn udo udu uea ueb ued uee uen un- una unb und une unn uno unq unu uoa uob uod uoe uon uoo uua uue uun uuu