b-u bbb bbe bbk bbm bbo bbt bbu be- beb bee bek bem beo bet beu bkb bke bkk bkm bko bkt bmb bme bmk bmm bmo bmt bmu bob boe bok bom boo bot bou btb bte btk btm bto btt btu bub bue buk bum buo but buu ebb ebe ebk ebm ebo ebt ebu eeb eee eek eem eeo eet ekb eke eko ekt eku em- emb eme emk emm emo emt emu eo- eob eoe eok eom eoo eot eou etb ete etk etm eto ett etu eu- eub eue eut k-t kbb kbe kbk kbm kbo kbu ke- keb kee kek kem keo ket kkb kke kkk kkm kkt kku kmb kme kmk kmm kmo kmt kmu kob koe kok kom koo kot kou ktb kte ktk ktm kto ktt ktu kub kue kuk kum kut kuu m-o mbb mbe mbk mbm mbo mbt mbu meb mee mek mem meo met meu mkb mke mkk mkm mko mkt mku mmb mme mmk mmm mmo mmt mmu mob moe mok mom moo mot mou mtb mte mtk mtm mto mtt mtu mub mue muk mum mut muu ob- obb obe obk obm obo obt obu oeb oee oem oeo oet okb oke okk oko oku om- omb ome omm omo omt omu oo- oob ook oom ooo oot ot- otb ote otk otm oto ott otu ou- oue ouk oum ouo out tbb tbe tbk tbm tbo tbt tbu te- teb tee tek tem teo tet teu tkb tke tkk tkm tko tkt tmb tme tmk tmm tmo tmt tmu to- tob toe tok tom too tot tou ttb tte ttk ttm tto ttt ttu tub tue tuk tum tuo tut tuu ubb ube ubk ubo ubt ubu ueb uee uem uet ukb uke ukk uku um- umb ume umm umo umt umu uob uoe uok uom uoo uot utb ute utk utm uto utt utu uue uum uut uuu