bbb bbd bbe bbm bbn bbo bdb bdd bde bdm bdo be- beb bed bee bem ben beo bmb bmd bme bmm bmn bmo bnb bnd bne bnn bno bob bod boe bom bon boo dbb dbd dbe dbm dbn dbo ddb ddd dde ddm ddn ddo de- deb ded dee dem den deo dmb dmd dme dmm dmn dmo dnb dnd dne dnm dnn dno dob dod doe dom don doo ebb ebd ebe ebm ebn ebo ed- edb edd ede edm edn edo eeb eed eee eem een eeo em- emb emd eme emm emn emo en- enb end ene enm enn eno eo- eob eod eoe eom eon eoo m-o mbb mbd mbe mbm mbo mdb mdd mde mdm mdn mdo meb med mee mem men meo mmb mmd mme mmm mmn mmo mnb mne mnm mnn mno mob mod moe mom mon moo nbb nbd nbe nbm nbn nbo ndb ndd nde ndm ndn ndo ne- neb ned nee nem nen neo nmb nmd nme nmm nmn nmo nnb nne nnm nnn nno no- nob nod noe nom non noo ob- obb obd obe obm obn obo odb odd ode odm odn odo oeb oed oee oem oen oeo om- omb omd ome omm omn omo on- onb ond one onn ono oo- oob ood oom oon ooo