bbb bbd bbe bbm bbn bbs bbt bdb bdd bde bdm bds bdt be- beb bed bee bem ben bes bet bmb bmd bme bmm bmn bms bmt bnb bnd bne bnn bns bnt bsb bsd bse bsm bsn bss bst btb btd bte btm btn bts btt dbb dbd dbe dbm dbn dbs dbt ddb ddd dde ddm ddn dds ddt de- deb ded dee dem den des det dmb dmd dme dmm dmn dms dmt dnb dnd dne dnm dnn dns dnt dsb dsd dse dsm dsn dss dst dtb dtd dte dtm dtn dts dtt ebb ebd ebe ebm ebn ebs ebt ed- edb edd ede edm edn eds edt eeb eed eee eem een ees eet em- emb emd eme emm emn ems emt en- enb end ene enm enn ens ent es- esb esd ese esm esn ess est etb etd ete etm etn ets ett mbb mbd mbe mbm mbs mbt mdb mdd mde mdm mdn mds mdt meb med mee mem men mes met mmb mmd mme mmm mmn mms mmt mnb mne mnm mnn mns mnt msb msd mse msm msn mss mst mtb mtd mte mtm mtn mts mtt nbb nbd nbe nbm nbn nbs nbt ndb ndd nde ndm ndn nds ndt ne- neb ned nee nem nen nes net nmb nmd nme nmm nmn nms nmt nnb nne nnm nnn nns nnt nsb nsd nse nsm nsn nss nst ntb ntd nte ntm ntn nts ntt sbb sbd sbe sbm sbn sbs sbt sdb sdd sde sdm sdn sds sdt se- seb sed see sem sen ses set smb smd sme smm smn sms smt snb snd sne snm snn sns snt ss- ssb ssd sse ssm ssn sss sst stb std ste stm stn sts stt tbb tbd tbe tbm tbn tbs tbt tdb tdd tde tdm tdn tds tdt te- teb ted tee tem ten tes tet tmb tmd tme tmm tmn tms tmt tnb tnd tne tnm tnn tns tnt tsb tsd tse tsm tsn tss tst ttb ttd tte ttm ttn tts ttt