b-u bbb bbd bbe bbm bbn bbo bbu bdb bdd bde bdm bdo bdu be- beb bed bee bem ben beo beu bmb bmd bme bmm bmn bmo bmu bnb bnd bne bnn bno bnu bob bod boe bom bon boo bou bub bud bue bum bun buo buu dbb dbd dbe dbm dbn dbo dbu ddb ddd dde ddm ddn ddo ddu de- deb ded dee dem den deo deu dmb dmd dme dmm dmn dmo dmu dnb dnd dne dnm dnn dno dob dod doe dom don doo dou dub dud due dum dun duo ebb ebd ebe ebm ebn ebo ebu ed- edb edd ede edm edn edo edu eeb eed eee eem een eeo em- emb emd eme emm emn emo emu en- enb end ene enm enn eno enu eo- eob eod eoe eom eon eoo eou eu- eub eud eue eun m-o mbb mbd mbe mbm mbo mbu mdb mdd mde mdm mdn mdo mdu meb med mee mem men meo meu mmb mmd mme mmm mmn mmo mmu mnb mne mnm mnn mno mnu mob mod moe mom mon moo mou mub mud mue mum mun muu nbb nbd nbe nbm nbn nbo nbu ndb ndd nde ndm ndn ndo ndu ne- neb ned nee nem nen neo neu nmb nmd nme nmm nmn nmo nmu nnb nne nnm nnn nno nnu no- nob nod noe nom non noo nou nub nud nue num nun nuo nuu ob- obb obd obe obm obn obo obu odb odd ode odm odn odo odu oeb oed oee oem oen oeo om- omb omd ome omm omn omo omu on- onb ond one onn ono onu oo- oob ood oom oon ooo ou- oud oue oum oun ouo ubb ube ubn ubo ubu udb udd ude udm udn udo udu ueb ued uee uem uen um- umb umd ume umm umn umo umu un- unb und une unm unn uno unu uob uod uoe uom uon uoo uue uum uun uuu