-er bbb bbd bbe bbh bbi bbk bbo bbr bdb bdd bde bdh bdi bdk bdo bdr be- beb bed bee beh bei bek beo ber bhb bhd bhe bhh bhi bhk bho bhr bi- bib bid bie bih bii bik bio bir bkb bke bkk bko bkr bob bod boe boh boi bok boo bor brb brd bre brh bri brk bro brr dbb dbd dbe dbh dbi dbk dbo dbr ddb ddd dde ddh ddi ddk ddo ddr de- deb ded dee deh dei dek deo der dh- dhb dhd dhe dhh dhi dhk dho dhr di- dib did die dih dii dik dio dir dkb dke dki dkk dko dkr dob dod doe doh doi dok doo dor drb drd dre dri drk dro drr ebb ebd ebe ebh ebi ebk ebo ebr ed- edb edd ede edh edi edk edo edr eeb eed eee eek eeo eer ehb ehd ehe ehh ehi eho ehr eib eid eie eii eik eio eir ekb ekd eke ekh eki eko ekr eo- eob eod eoe eoh eoi eok eoo eor erb erd ere erh eri erk ero err h-i hbb hbd hbe hbh hbi hbk hbo hbr hdb hdd hde hdh hdi hdk hdo hdr he- heb hed hee heh hei hek heo her hhb hhd hhe hhh hhi hhk hho hhr hib hid hie hih hii hik hio hir hkb hkd hkh hki hkk hko hkr hob hod hoe hoh hoi hok hoo hor hr- hrb hrd hre hrh hri hrk hro hrr i-d ibb ibd ibe ibh ibi ibk ibo ibr idb idd ide idh idi idk ido idr ie- ied iee iei iek ier ihb ihd ihe ihh ihi ihk iho ihr iib iid iie iih iii iio iir ikb ike iki ikk iko ikr io- iob iod ioe ioh ioi ioo ior ir- irb ird ire iri irk iro irr kbb kbd kbe kbh kbi kbk kbo kbr kdb kde kdh kdk kdo kdr ke- keb ked kee keh kei kek keo ker khe khh khi khk kho khr kib kid kie kih kii kik kio kir kkb kke kkh kki kkk kkr kob kod koe koh koi kok koo kor krd kri krk kro krr o-i ob- obb obd obe obh obi obk obo obr odb odd ode odh odi odo odr oeb oed oee oeh oei oeo oer ohd ohe ohh ohi oho ohr oib oid oie oii oik oio oir okb okd oke oki okk oko okr oo- oob ood ooh ooi ook ooo oor or- orb ord ore orh ori ork oro orr rbb rbd rbe rbh rbi rbk rbo rbr rdb rdd rde rdh rdi rdo rdr re- reb red ree reh rei rek reo rer rh- rhb rhd rhe rhh rhi rho rhr rib rid rie rih rii rik rio rir rkb rke rkk rko rob rod roe roh roi rok roo ror rrb rrd rrh rri rrk rrr