-er bbb bbd bbe bbm bbn bbo bbr bdb bdd bde bdm bdo bdr be- beb bed bee bem ben beo ber bmb bmd bme bmm bmn bmo bmr bnb bnd bne bnn bno bnr bob bod boe bom bon boo bor brb brd bre brm brn bro brr dbb dbd dbe dbm dbn dbo dbr ddb ddd dde ddm ddn ddo ddr de- deb ded dee dem den deo der dmb dmd dme dmm dmn dmo dmr dnb dnd dne dnm dnn dno dnr dob dod doe dom don doo dor drb drd dre drm drn dro drr ebb ebd ebe ebm ebn ebo ebr ed- edb edd ede edm edn edo edr eeb eed eee eem een eeo eer em- emb emd eme emm emn emo emr en- enb end ene enm enn eno enr eo- eob eod eoe eom eon eoo eor erb erd ere erm ern ero err m-o m-r mbb mbd mbe mbm mbo mbr mdb mdd mde mdm mdn mdo mdr meb med mee mem men meo mer mmb mmd mme mmm mmn mmo mmr mnb mne mnm mnn mno mnr mob mod moe mom mon moo mor mrb mrd mre mrm mrn mro mrr nbb nbd nbe nbm nbn nbo nbr ndb ndd nde ndm ndn ndo ndr ne- neb ned nee nem nen neo ner nmb nmd nme nmm nmn nmo nmr nnb nne nnm nnn nno no- nob nod noe nom non noo nor nrb nrd nre nrm nrn nro nrr ob- obb obd obe obm obn obo obr odb odd ode odm odn odo odr oeb oed oee oem oen oeo oer om- omb omd ome omm omn omo omr on- onb ond one onn ono onr oo- oob ood oom oon ooo oor or- orb ord ore orm orn oro orr rbb rbd rbe rbm rbn rbo rbr rdb rdd rde rdm rdn rdo rdr re- reb red ree rem ren reo rer rmb rmd rme rmm rmn rmo rmr rnb rnd rnm rnn rno rnr rob rod roe rom ron roo ror rrb rrd rrm rrn rrr