b-p bbb bbe bbm bbn bbp bbt be- beb bee bem ben bep bet bmb bme bmm bmn bmp bmt bnb bne bnn bnp bnt bpb bpe bpm bpn bpp bpt btb bte btm btn btp btt ebb ebe ebm ebn ebp ebt eeb eee eem een eep eet em- emb eme emm emn emp emt en- enb ene enm enn enp ent ep- epb epe epm epn epp ept etb ete etm etn etp ett mbb mbe mbm mbp mbt meb mee mem men mep met mmb mme mmm mmn mmp mmt mnb mne mnm mnn mnp mnt mpb mpe mpm mpn mpp mpt mtb mte mtm mtn mtp mtt nbb nbe nbm nbn nbp nbt ne- neb nee nem nen nep net nmb nme nmm nmn nmp nmt nnb nne nnm nnn nnp nnt npb npe npm npn npp npt ntb nte ntm ntn ntp ntt p-p pbb pbe pbm pbn pbp pbt peb pee pem pen pep pet pmb pme pmm pmn pmp pmt pn- pnb pne pnm pnn pnp pnt ppb ppe ppm ppn ppp ppt pt- ptb pte ptm ptn ptp ptt tbb tbe tbm tbn tbp tbt te- teb tee tem ten tep tet tmb tme tmm tmn tmp tmt tnb tne tnm tnn tnp tnt tpb tpe tpm tpn tpp tpt ttb tte ttm ttn ttp ttt