a-a a-b aaa aab aad aae aah aan aao aau ab- aba abb abd abe abh abn abo abu ad- ada adb add ade adh adn ado adu aea aeb aed aee aeh aen aeo aeu aha ahb ahd ahe ahh ahn aho ahu an- ana anb and ane anh ann ano anu aoa aob aod aoe aoh aon aoo aou au- aua aub aud aue auh aun auo b-u baa bab bad bae bah ban bao bau bba bbb bbd bbe bbh bbn bbo bbu bda bdb bdd bde bdh bdo bdu be- bea beb bed bee beh ben beo beu bha bhb bhd bhe bhh bho bhu bna bnb bnd bne bnn bno bnu boa bob bod boe boh bon boo bou bua bub bud bue buh bun buo buu daa dab dad dae dah dan dao dau dba dbb dbd dbe dbh dbn dbo dbu dda ddb ddd dde ddh ddn ddo ddu de- dea deb ded dee deh den deo deu dh- dha dhb dhd dhe dhh dho dhu dna dnb dnd dne dnh dnn dno doa dob dod doe doh don doo dou dua dub dud due duh dun duo eaa eab ead eae eah ean eao eau eba ebb ebd ebe ebh ebn ebo ebu ed- eda edb edd ede edh edn edo edu eea eeb eed eee een eeo eha ehb ehd ehe ehh ehn eho ehu en- ena enb end ene enh enn eno enu eo- eoa eob eod eoe eoh eon eoo eou eu- eua eub eud eue eun haa hab had hae hah han hao hau hba hbb hbd hbe hbh hbn hbo hbu hda hdb hdd hde hdh hdn hdo hdu he- hea heb hed hee heh hen heo heu hha hhb hhd hhe hhh hhn hho hhu hna hnb hnd hne hnh hnn hno hnu hoa hob hod hoe hoh hon hoo hou hua hub hud hue huh hun huo huu naa nab nad nae nah nan nao nau nba nbb nbd nbe nbn nbo nbu nda ndb ndd nde ndh ndn ndo ndu ne- nea neb ned nee neh nen neo neu nha nhb nhd nhe nhh nhn nhu nna nnb nne nnh nnn nno nnu no- noa nob nod noe noh non noo nou nua nub nud nue nuh nun nuo nuu oaa oab oad oae oah oan oao oau ob- oba obb obd obe obh obn obo obu oda odb odd ode odh odn odo odu oea oeb oed oee oeh oen oeo oha ohd ohe ohh ohn oho ohu on- ona onb ond one onh onn ono onu oo- ooa oob ood ooh oon ooo ou- oua oud oue ouh oun ouo ua- uaa uab uad uae uah uan uao uau uba ubb ube ubh ubn ubo ubu uda udb udd ude udn udo udu uea ueb ued uee ueh uen uha uhb uhd uhe uhh uho uhu un- una unb und une unh unn uno unu uoa uob uod uoe uon uoo uua uue uun uuu