-er bbb bbd bbe bbg bbh bbk bbo bbr bdb bdd bde bdg bdh bdk bdo bdr be- beb bed bee beg beh bek beo ber bgb bgd bge bgg bgh bgk bgo bgr bhb bhd bhe bhg bhh bhk bho bhr bkb bke bkg bkk bko bkr bob bod boe bog boh bok boo bor brb brd bre brg brh brk bro brr dbb dbd dbe dbg dbh dbk dbo dbr ddb ddd dde ddg ddh ddk ddo ddr de- deb ded dee deg deh dek deo der dgd dge dgg dgh dgk dgr dh- dhb dhd dhe dhh dhk dho dhr dkb dke dkg dkk dko dkr dob dod doe dog doh dok doo dor drb drd dre drg drk dro drr ebb ebd ebe ebg ebh ebk ebo ebr ed- edb edd ede edg edh edk edo edr eeb eed eee eeg eek eeo eer egb egd ege egg egh ego egr ehb ehd ehe ehg ehh eho ehr ekb ekd eke ekg ekh eko ekr eo- eob eod eoe eog eoh eok eoo eor erb erd ere erg erh erk ero err g-d gbd gbe gbg gbh gbk gbo gbr gdb gdd gde gdh gdk gdo gdr ge- geb ged gee geg geh gek geo ger ggb ggd ggg ggh ggo ggr ghb ghd ghe ghg ghh gho ghr gkb gkd gkh gko gob god goe gog goh gok goo gor grb grd gre grg grh grk gro grr hbb hbd hbe hbg hbh hbk hbo hbr hdb hdd hde hdg hdh hdk hdo hdr he- heb hed hee heg heh hek heo her hgb hge hgg hgh hgk hgo hgr hhb hhd hhe hhg hhh hhk hho hhr hkb hkd hkg hkh hkk hko hkr hob hod hoe hog hoh hok hoo hor hr- hrb hrd hre hrg hrh hrk hro hrr kbb kbd kbe kbh kbk kbo kbr kdb kde kdg kdh kdk kdo kdr ke- keb ked kee keg keh kek keo ker kgb kgd kgh kgo khe khh khk kho khr kkb kke kkh kkk kkr kob kod koe kog koh kok koo kor krd krg krk kro krr ob- obb obd obe obg obh obk obo obr odb odd ode odg odh odo odr oeb oed oee oeg oeh oeo oer ogd oge ogg ogh ogo ohd ohe ohg ohh oho ohr okb okd oke okg okk oko okr oo- oob ood oog ooh ook ooo oor or- orb ord ore org orh ork oro orr rbb rbd rbe rbg rbh rbk rbo rbr rdb rdd rde rdg rdh rdo rdr re- reb red ree reg reh rek reo rer rgb rgd rge rgg rgh rgk rgo rgr rh- rhb rhd rhe rhg rhh rho rhr rkb rke rkg rkk rko rob rod roe rog roh rok roo ror rrb rrd rrg rrh rrk rrr