a-a a-b aaa aab aad aae aah aan aau aax ab- aba abb abd abe abh abn abu abx ad- ada adb add ade adh adn adu adx aea aeb aed aee aeh aen aeu aex aha ahb ahd ahe ahh ahn ahu ahx an- ana anb and ane anh ann anu anx au- aua aub aud aue auh aun aux ax- axa axe axh axn axx b-u baa bab bad bae bah ban bau bax bba bbb bbd bbe bbh bbn bbu bbx bda bdb bdd bde bdh bdu bdx be- bea beb bed bee beh ben beu bex bha bhb bhd bhe bhh bhu bhx bna bnb bnd bne bnn bnu bnx bua bub bud bue buh bun buu bux bxb bxd bxn bxx daa dab dad dae dah dan dau dax dba dbb dbd dbe dbh dbn dbu dbx dda ddb ddd dde ddh ddn ddu ddx de- dea deb ded dee deh den deu dex dh- dha dhb dhd dhe dhh dhu dna dnb dnd dne dnh dnn dua dub dud due duh dun dux dxd dxn dxx eaa eab ead eae eah ean eau eax eba ebb ebd ebe ebh ebn ebu ebx ed- eda edb edd ede edh edn edu edx eea eeb eed eee een eex eha ehb ehd ehe ehh ehn ehu en- ena enb end ene enh enn enu eu- eua eub eud eue eun eux ex- exa exd exe exh exu exx haa hab had hae hah han hau hax hba hbb hbd hbe hbh hbn hbu hbx hda hdb hdd hde hdh hdn hdu hdx he- hea heb hed hee heh hen heu hex hha hhb hhd hhe hhh hhn hhu hna hnb hnd hne hnh hnn hnu hua hub hud hue huh hun huu hux hxd naa nab nad nae nah nan nau nax nba nbb nbd nbe nbn nbu nbx nda ndb ndd nde ndh ndn ndu ne- nea neb ned nee neh nen neu nex nha nhb nhd nhe nhh nhn nhu nna nnb nne nnh nnn nnu nua nub nud nue nuh nun nuu nux nxd ua- uaa uab uad uae uah uan uau uba ubb ube ubh ubn ubu ubx uda udb udd ude udn udu udx uea ueb ued uee ueh uen uha uhb uhd uhe uhh uhu un- una unb und une unh unn unu unx uua uue uun uuu uxb uxu xaa xad xan xau xbe xbx xda xdb xde xdh xed xee xen xeu xex xhd xna xnu xue xun xxx