b-p bbb bbd bbe bbn bbo bbp bbs bdb bdd bde bdo bdp bds be- beb bed bee ben beo bep bes bnb bnd bne bnn bno bnp bns bob bod boe bon boo bop bos bpb bpd bpe bpn bpo bpp bps bsb bsd bse bsn bso bsp bss dbb dbd dbe dbn dbo dbp dbs ddb ddd dde ddn ddo ddp dds de- deb ded dee den deo dep des dnb dnd dne dnn dno dnp dns dob dod doe don doo dop dos dpb dpd dpe dpn dpo dpp dps dsb dsd dse dsn dso dsp dss ebb ebd ebe ebn ebo ebp ebs ed- edb edd ede edn edo edp eds eeb eed eee een eeo eep ees en- enb end ene enn eno enp ens eo- eob eod eoe eon eoo eop eos ep- epb epd epe epn epo epp eps es- esb esd ese esn eso esp ess nbb nbd nbe nbn nbo nbp nbs ndb ndd nde ndn ndo ndp nds ne- neb ned nee nen neo nep nes nnb nne nnn nno nnp nns no- nob nod noe non noo nop nos npb npd npe npn npo npp nps nsb nsd nse nsn nso nsp nss ob- obb obd obe obn obo obp obs odb odd ode odn odo odp ods oeb oed oee oen oeo oep oes on- onb ond one onn ono onp ons oo- oob ood oon ooo oop oos op- opb opd ope opn opo opp ops os- osb osd ose osn oso osp oss p-p pbb pbd pbe pbn pbo pbp pbs pdb pdd pde pdn pdo pdp pds peb ped pee pen peo pep pes pn- pnb pnd pne pnn pno pnp pns pob pod poe pon poo pop pos ppb ppd ppe ppn ppo ppp pps ps- psb psd pse psn pso psp pss sbb sbd sbe sbn sbo sbp sbs sdb sdd sde sdn sdo sdp sds se- seb sed see sen seo sep ses snb snd sne snn sno snp sns sob sod soe son soo sop sos spb spd spe spn spo spp sps ss- ssb ssd sse ssn sso ssp sss