a-a a-b a-t aaa aab aad aae aam aan aat aau ab- aba abb abd abe abm abn abt abu ad- ada adb add ade adm adn adt adu aea aeb aed aee aem aen aet aeu ama amb amd ame amm amn amt amu an- ana anb and ane anm ann ant anu at- ata atb atd ate atm atn att atu au- aua aub aud aue aum aun aut b-u baa bab bad bae bam ban bat bau bba bbb bbd bbe bbm bbn bbt bbu bda bdb bdd bde bdm bdt bdu be- bea beb bed bee bem ben bet beu bma bmb bmd bme bmm bmn bmt bmu bna bnb bnd bne bnn bnt bnu bta btb btd bte btm btn btt btu bua bub bud bue bum bun but buu daa dab dad dae dam dan dat dau dba dbb dbd dbe dbm dbn dbt dbu dda ddb ddd dde ddm ddn ddt ddu de- dea deb ded dee dem den det deu dma dmb dmd dme dmm dmn dmt dmu dna dnb dnd dne dnm dnn dnt dta dtb dtd dte dtm dtn dtt dtu dua dub dud due dum dun dut eaa eab ead eae eam ean eat eau eba ebb ebd ebe ebm ebn ebt ebu ed- eda edb edd ede edm edn edt edu eea eeb eed eee eem een eet em- ema emb emd eme emm emn emt emu en- ena enb end ene enm enn ent enu eta etb etd ete etm etn ett etu eu- eua eub eud eue eun eut maa mab mad mae mam man mat mau mba mbb mbd mbe mbm mbt mbu mda mdb mdd mde mdm mdn mdt mdu mea meb med mee mem men met meu mma mmb mmd mme mmm mmn mmt mmu mna mnb mne mnm mnn mnt mnu mta mtb mtd mte mtm mtn mtt mtu mua mub mud mue mum mun mut muu naa nab nad nae nam nan nat nau nba nbb nbd nbe nbm nbn nbt nbu nda ndb ndd nde ndm ndn ndt ndu ne- nea neb ned nee nem nen net neu nma nmb nmd nme nmm nmn nmt nmu nna nnb nne nnm nnn nnt nnu nta ntb ntd nte ntm ntn ntt ntu nua nub nud nue num nun nut nuu taa tab tad tae tam tan tat tau tba tbb tbd tbe tbm tbn tbt tbu tda tdb tdd tde tdm tdn tdt tdu te- tea teb ted tee tem ten tet teu tma tmb tmd tme tmm tmn tmt tmu tna tnb tnd tne tnm tnn tnt tta ttb ttd tte ttm ttn ttt ttu tua tub tud tue tum tun tut tuu ua- uaa uab uad uae uam uan uat uau uba ubb ube ubn ubt ubu uda udb udd ude udm udn udt udu uea ueb ued uee uem uen uet um- uma umb umd ume umm umn umt umu un- una unb und une unm unn unt unu uta utb utd ute utm utn utt utu uua uue uum uun uut uuu