b-p bbb bbe bbh bbi bbk bbo bbp bbs be- beb bee beh bei bek beo bep bes bhb bhe bhh bhi bhk bho bhp bhs bi- bib bie bih bii bik bio bip bis bkb bke bkk bko bkp bks bob boe boh boi bok boo bop bos bpb bpe bph bpi bpo bpp bps bsb bse bsh bsi bsk bso bsp bss ebb ebe ebh ebi ebk ebo ebp ebs eeb eee eek eeo eep ees ehb ehe ehh ehi eho ehp ehs eib eie eii eik eio eip eis ekb eke ekh eki eko ekp eks eo- eob eoe eoh eoi eok eoo eop eos ep- epb epe eph epi epo epp eps es- esb ese esh esi esk eso esp ess h-i hbb hbe hbh hbi hbk hbo hbp hbs he- heb hee heh hei hek heo hep hes hhb hhe hhh hhi hhk hho hhp hhs hib hie hih hii hik hio hip his hkb hkh hki hkk hko hkp hks hob hoe hoh hoi hok hoo hop hos hpb hpe hph hpi hpk hpo hpp hps hsb hse hsh hsi hsk hsp hss ibb ibe ibh ibi ibk ibo ibp ibs ie- iee iei iek iep ies ihb ihe ihh ihi ihk iho ihp ihs iib iie iih iii iio iip iis ikb ike iki ikk iko iks io- iob ioe ioh ioi ioo iop ios ipb ipe ipi ipo ipp ips is- isb ise ish isi isk iso isp iss kbb kbe kbh kbi kbk kbo kbp kbs ke- keb kee keh kei kek keo kep kes khe khh khi khk kho khs kib kie kih kii kik kio kip kis kkb kke kkh kki kkk kkp kks kob koe koh koi kok koo kop kos kpe kph kpi kpk kpo kpp kps ksb kse ksh ksi ksk kso ksp kss o-i ob- obb obe obh obi obk obo obp obs oeb oee oeh oei oeo oep oes ohe ohh ohi oho ohp ohs oib oie oii oik oio oip ois okb oke oki okk oko okp oks oo- oob ooh ooi ook ooo oop oos op- opb ope oph opi opk opo opp ops os- osb ose osh osi osk oso osp oss p-p pbb pbe pbi pbk pbo pbp pbs peb pee peh pei pek peo pep pes phb phe phi phk pho php phs pib pie pih pii pik pio pip pis pkb pke pki pko pkp pks pob poe poh poi pok poo pop pos ppb ppe pph ppi ppk ppo ppp pps ps- psb pse psh psi psk pso psp pss sbb sbe sbh sbi sbk sbo sbp sbs se- seb see seh sei sek seo sep ses sh- shb she shh shi shk sho shp shs sib sie sih sii sik sio sip sis sk- skb ske skh ski skk sko skp sks sob soe soh soi sok soo sop sos spb spe sph spi spk spo spp sps ss- ssb sse ssh ssi ssk sso ssp sss