b-u bbb bbd bbe bbl bbm bbt bbu bdb bdd bde bdl bdm bdt bdu be- beb bed bee bel bem bet beu blb bld ble bll blm blt blu bmb bmd bme bml bmm bmt bmu btb btd bte btl btm btt btu bub bud bue bul bum but buu dbb dbd dbe dbl dbm dbt dbu ddb ddd dde ddl ddm ddt ddu de- deb ded dee del dem det deu dl- dlb dld dle dll dlm dlt dlu dmb dmd dme dml dmm dmt dmu dtb dtd dte dtl dtm dtt dtu dub dud due dul dum dut ebb ebd ebe ebl ebm ebt ebu ed- edb edd ede edl edm edt edu eeb eed eee eel eem eet elb eld ele ell elm elt elu em- emb emd eme eml emm emt emu etb etd ete etl etm ett etu eu- eub eud eue eul eut lbb lbd lbe lbl lbm lbt lbu ldb ldd lde ldl ldm ldt ldu leb led lee lel lem let leu llb lld lle lll llm llt llu lmb lmd lme lml lmm lmt lmu ltb ltd lte ltl ltm ltt ltu lub lud lue lul lum lut luu mbb mbd mbe mbl mbm mbt mbu mdb mdd mde mdl mdm mdt mdu meb med mee mel mem met meu mlb mld mle mll mlm mlt mlu mmb mmd mme mml mmm mmt mmu mtb mtd mte mtl mtm mtt mtu mub mud mue mul mum mut muu tbb tbd tbe tbl tbm tbt tbu tdb tdd tde tdl tdm tdt tdu te- teb ted tee tel tem tet teu tld tle tll tlm tlt tlu tmb tmd tme tml tmm tmt tmu ttb ttd tte ttl ttm ttt ttu tub tud tue tul tum tut tuu ubb ube ubl ubt ubu udb udd ude udl udm udt udu ueb ued uee uel uem uet ulb uld ule ull ulm ult ulu um- umb umd ume uml umm umt umu utb utd ute utl utm utt utu uue uum uut uuu