b-p bbb bbe bbm bbn bbo bbp bbt be- beb bee bem ben beo bep bet bmb bme bmm bmn bmo bmp bmt bnb bne bnn bno bnp bnt bob boe bom bon boo bop bot bpb bpe bpm bpn bpo bpp bpt btb bte btm btn bto btp btt ebb ebe ebm ebn ebo ebp ebt eeb eee eem een eeo eep eet em- emb eme emm emn emo emp emt en- enb ene enm enn eno enp ent eo- eob eoe eom eon eoo eop eot ep- epb epe epm epn epo epp ept etb ete etm etn eto etp ett m-o mbb mbe mbm mbo mbp mbt meb mee mem men meo mep met mmb mme mmm mmn mmo mmp mmt mnb mne mnm mnn mno mnp mnt mob moe mom mon moo mop mot mpb mpe mpm mpn mpo mpp mpt mtb mte mtm mtn mto mtp mtt nbb nbe nbm nbn nbo nbp nbt ne- neb nee nem nen neo nep net nmb nme nmm nmn nmo nmp nmt nnb nne nnm nnn nno nnp nnt no- nob noe nom non noo nop not npb npe npm npn npo npp npt ntb nte ntm ntn nto ntp ntt ob- obb obe obm obn obo obp obt oeb oee oem oen oeo oep oet om- omb ome omm omn omo omp omt on- onb one onn ono onp ont oo- oob oom oon ooo oop oot op- opb ope opm opn opo opp opt ot- otb ote otm otn oto otp ott p-p pbb pbe pbm pbn pbo pbp pbt peb pee pem pen peo pep pet pmb pme pmm pmn pmo pmp pmt pn- pnb pne pnm pnn pno pnp pnt pob poe pom pon poo pop pot ppb ppe ppm ppn ppo ppp ppt pt- ptb pte ptm ptn pto ptp ptt tbb tbe tbm tbn tbo tbp tbt te- teb tee tem ten teo tep tet tmb tme tmm tmn tmo tmp tmt tnb tne tnm tnn tno tnp tnt to- tob toe tom ton too top tot tpb tpe tpm tpn tpo tpp tpt ttb tte ttm ttn tto ttp ttt