bbb bbe bbh bbi bbk bbo bbs be- beb bee beh bei bek beo bes bhb bhe bhh bhi bhk bho bhs bi- bib bie bih bii bik bio bis bkb bke bkk bko bks bob boe boh boi bok boo bos bsb bse bsh bsi bsk bso bss ebb ebe ebh ebi ebk ebo ebs eeb eee eek eeo ees ehb ehe ehh ehi eho ehs eib eie eii eik eio eis ekb eke ekh eki eko eks eo- eob eoe eoh eoi eok eoo eos es- esb ese esh esi esk eso ess h-i hbb hbe hbh hbi hbk hbo hbs he- heb hee heh hei hek heo hes hhb hhe hhh hhi hhk hho hhs hib hie hih hii hik hio his hkb hkh hki hkk hko hks hob hoe hoh hoi hok hoo hos hsb hse hsh hsi hsk hss ibb ibe ibh ibi ibk ibo ibs ie- iee iei iek ies ihb ihe ihh ihi ihk iho ihs iib iie iih iii iio iis ikb ike iki ikk iko iks io- iob ioe ioh ioi ioo ios is- isb ise ish isi isk iso iss kbb kbe kbh kbi kbk kbo kbs ke- keb kee keh kei kek keo kes khe khh khi khk kho khs kib kie kih kii kik kio kis kkb kke kkh kki kkk kks kob koe koh koi kok koo kos ksb kse ksh ksi ksk kso kss o-i ob- obb obe obh obi obk obo obs oeb oee oeh oei oeo oes ohe ohh ohi oho ohs oib oie oii oik oio ois okb oke oki okk oko oks oo- oob ooh ooi ook ooo oos os- osb ose osh osi osk oso oss sbb sbe sbh sbi sbk sbo sbs se- seb see seh sei sek seo ses sh- shb she shh shi shk sho shs sib sie sih sii sik sio sis sk- skb ske skh ski skk sko sks sob soe soh soi sok soo sos ss- ssb sse ssh ssi ssk sso sss