a-a a-b a-t aaa aab aad aae aam aao aat aau ab- aba abb abd abe abm abo abt abu ad- ada adb add ade adm ado adt adu aea aeb aed aee aem aeo aet aeu ama amb amd ame amm amo amt amu aoa aob aod aoe aom aoo aot aou at- ata atb atd ate atm ato att atu au- aua aub aud aue aum auo aut b-u baa bab bad bae bam bao bat bau bba bbb bbd bbe bbm bbo bbt bbu bda bdb bdd bde bdm bdo bdt bdu be- bea beb bed bee bem beo bet beu bma bmb bmd bme bmm bmo bmt bmu boa bob bod boe bom boo bot bou bta btb btd bte btm bto btt btu bua bub bud bue bum buo but buu daa dab dad dae dam dao dat dau dba dbb dbd dbe dbm dbo dbt dbu dda ddb ddd dde ddm ddo ddt ddu de- dea deb ded dee dem deo det deu dma dmb dmd dme dmm dmo dmt dmu doa dob dod doe dom doo dot dou dta dtb dtd dte dtm dto dtt dtu dua dub dud due dum duo dut eaa eab ead eae eam eao eat eau eba ebb ebd ebe ebm ebo ebt ebu ed- eda edb edd ede edm edo edt edu eea eeb eed eee eem eeo eet em- ema emb emd eme emm emo emt emu eo- eoa eob eod eoe eom eoo eot eou eta etb etd ete etm eto ett etu eu- eua eub eud eue eut m-o maa mab mad mae mam mao mat mau mba mbb mbd mbe mbm mbo mbt mbu mda mdb mdd mde mdm mdo mdt mdu mea meb med mee mem meo met meu mma mmb mmd mme mmm mmo mmt mmu moa mob mod moe mom moo mot mou mta mtb mtd mte mtm mto mtt mtu mua mub mud mue mum mut muu oaa oab oad oae oam oao oat oau ob- oba obb obd obe obm obo obt obu oda odb odd ode odm odo odt odu oea oeb oed oee oem oeo oet om- oma omb omd ome omm omo omt omu oo- ooa oob ood oom ooo oot ot- ota otb otd ote otm oto ott otu ou- oua oud oue oum ouo out taa tab tad tae tam tao tat tau tba tbb tbd tbe tbm tbo tbt tbu tda tdb tdd tde tdm tdo tdt tdu te- tea teb ted tee tem teo tet teu tma tmb tmd tme tmm tmo tmt tmu to- toa tob tod toe tom too tot tou tta ttb ttd tte ttm tto ttt ttu tua tub tud tue tum tuo tut tuu ua- uaa uab uad uae uam uao uat uau uba ubb ube ubo ubt ubu uda udb udd ude udm udo udt udu uea ueb ued uee uem uet um- uma umb umd ume umm umo umt umu uoa uob uod uoe uom uoo uot uta utb utd ute utm uto utt utu uua uue uum uut uuu