bbb bbd bbe bbm bbn bbt bdb bdd bde bdm bdt be- beb bed bee bem ben bet bmb bmd bme bmm bmn bmt bnb bnd bne bnn bnt btb btd bte btm btn btt dbb dbd dbe dbm dbn dbt ddb ddd dde ddm ddn ddt de- deb ded dee dem den det dmb dmd dme dmm dmn dmt dnb dnd dne dnm dnn dnt dtb dtd dte dtm dtn dtt ebb ebd ebe ebm ebn ebt ed- edb edd ede edm edn edt eeb eed eee eem een eet em- emb emd eme emm emn emt en- enb end ene enm enn ent etb etd ete etm etn ett mbb mbd mbe mbm mbt mdb mdd mde mdm mdn mdt meb med mee mem men met mmb mmd mme mmm mmn mmt mnb mne mnm mnn mnt mtb mtd mte mtm mtn mtt nbb nbd nbe nbm nbn nbt ndb ndd nde ndm ndn ndt ne- neb ned nee nem nen net nmb nmd nme nmm nmn nmt nnb nne nnm nnn nnt ntb ntd nte ntm ntn ntt tbb tbd tbe tbm tbn tbt tdb tdd tde tdm tdn tdt te- teb ted tee tem ten tet tmb tmd tme tmm tmn tmt tnb tnd tne tnm tnn tnt ttb ttd tte ttm ttn ttt