-er bbb bbe bbh bbi bbk bbr be- beb bee beh bei bek ber bhb bhe bhh bhi bhk bhr bi- bib bie bih bii bik bir bkb bke bkk bkr brb bre brh bri brk brr ebb ebe ebh ebi ebk ebr eeb eee eek eer ehb ehe ehh ehi ehr eib eie eii eik eir ekb eke ekh eki ekr erb ere erh eri erk err h-i hbb hbe hbh hbi hbk hbr he- heb hee heh hei hek her hhb hhe hhh hhi hhk hhr hib hie hih hii hik hir hkb hkh hki hkk hkr hr- hrb hre hrh hri hrk hrr ibb ibe ibh ibi ibk ibr ie- iee iei iek ier ihb ihe ihh ihi ihk ihr iib iie iih iii iir ikb ike iki ikk ikr ir- irb ire iri irk irr kbb kbe kbh kbi kbk kbr ke- keb kee keh kei kek ker khe khh khi khk khr kib kie kih kii kik kir kkb kke kkh kki kkk kkr kri krk krr rbb rbe rbh rbi rbk rbr re- reb ree reh rei rek rer rh- rhb rhe rhh rhi rhr rib rie rih rii rik rir rkb rke rkk rrb rrh rri rrk rrr