bbb bbe bbf bbl bbm bbn bbs bbt be- beb bee bef bel bem ben bes bet bfb bfe bff bfl bfm bfn bfs bft blb ble blf bll blm bln bls blt bmb bme bmf bml bmm bmn bms bmt bnb bne bnf bnl bnn bns bnt bsb bse bsf bsl bsm bsn bss bst btb bte btf btl btm btn bts btt ebb ebe ebf ebl ebm ebn ebs ebt eeb eee eef eel eem een ees eet ef- efb efe eff efl efm efs eft elb ele elf ell elm eln els elt em- emb eme emf eml emm emn ems emt en- enb ene enf enl enm enn ens ent es- esb ese esf esl esm esn ess est etb ete etf etl etm etn ets ett fbb fbe fbf fbl fbm fbn fbs fbt feb fee fef fel fem fen fes fet ffe fff ffl ffm ffn ffs fft flb fle flf fll flm fln fls flt fmb fme fmf fml fmm fmn fms fmt fnb fne fnf fnl fnm fnn fns fnt fsb fse fsf fsl fsm fsn fss fst ftb fte ftf ftl ftm ftn fts ftt lbb lbe lbf lbl lbm lbs lbt leb lee lef lel lem len les let lfb lfe lff lfl lfm lfn lfs lft llb lle llf lll llm lln lls llt lmb lme lmf lml lmm lmn lms lmt lnb lne lnl lnm lnn lns lnt lsb lse lsf lsl lsm lsn lss lst ltb lte ltf ltl ltm lts ltt m-f mbb mbe mbf mbl mbm mbs mbt meb mee mef mel mem men mes met mfb mfe mff mfl mfm mfn mfs mft mlb mle mlf mll mlm mln mls mlt mmb mme mmf mml mmm mmn mms mmt mnb mne mnf mnl mnm mnn mns mnt msb mse msf msl msm msn mss mst mtb mte mtf mtl mtm mtn mts mtt nbb nbe nbf nbl nbm nbn nbs nbt ne- neb nee nef nel nem nen nes net nfb nfe nff nfl nfn nfs nft nlb nle nlf nll nlm nln nls nlt nmb nme nml nmm nmn nms nmt nnb nne nnf nnl nnm nnn nns nnt nsb nse nsf nsl nsm nsn nss nst ntb nte ntf ntm ntn nts ntt sbb sbe sbf sbl sbm sbn sbs sbt se- seb see sef sel sem sen ses set sfb sfe sff sfl sfm sfn sfs sft slb sle slf sll slm sln sls slt smb sme smf sml smm smn sms smt snb sne snf snl snm snn sns snt ss- ssb sse ssf ssl ssm ssn sss sst stb ste stf stl stm stn sts stt tbb tbe tbf tbl tbm tbn tbs tbt te- teb tee tef tel tem ten tes tet tfb tfe tff tfl tfm tfn tfs tft tle tlf tll tlm tln tls tlt tmb tme tmf tml tmm tmn tms tmt tnb tne tnf tnl tnm tnn tns tnt tsb tse tsf tsl tsm tsn tss tst ttb tte ttf ttl ttm ttn tts ttt