-er bbb bbd bbe bbh bbo bbr bbs bdb bdd bde bdh bdo bdr bds be- beb bed bee beh beo ber bes bhb bhd bhe bhh bho bhr bhs bob bod boe boh boo bor bos brb brd bre brh bro brr brs bsb bsd bse bsh bso bsr bss dbb dbd dbe dbh dbo dbr dbs ddb ddd dde ddh ddo ddr dds de- deb ded dee deh deo der des dh- dhb dhd dhe dhh dho dhr dhs dob dod doe doh doo dor dos drb drd dre dro drr drs dsb dsd dse dsh dso dsr dss ebb ebd ebe ebh ebo ebr ebs ed- edb edd ede edh edo edr eds eeb eed eee eeo eer ees ehb ehd ehe ehh eho ehr ehs eo- eob eod eoe eoh eoo eor eos erb erd ere erh ero err ers es- esb esd ese esh eso esr ess hbb hbd hbe hbh hbo hbr hbs hdb hdd hde hdh hdo hdr hds he- heb hed hee heh heo her hes hhb hhd hhe hhh hho hhr hhs hob hod hoe hoh hoo hor hos hr- hrb hrd hre hrh hro hrr hrs hsb hsd hse hsh hsr hss ob- obb obd obe obh obo obr obs odb odd ode odh odo odr ods oeb oed oee oeh oeo oer oes ohd ohe ohh oho ohr ohs oo- oob ood ooh ooo oor oos or- orb ord ore orh oro orr ors os- osb osd ose osh oso osr oss rbb rbd rbe rbh rbo rbr rbs rdb rdd rde rdh rdo rdr rds re- reb red ree reh reo rer res rh- rhb rhd rhe rhh rho rhr rhs rob rod roe roh roo ror ros rrb rrd rrh rrr rrs rsb rsd rse rsh rso rsr rss sbb sbd sbe sbh sbo sbr sbs sdb sdd sde sdh sdo sdr sds se- seb sed see seh seo ser ses sh- shb shd she shh sho shr shs sob sod soe soh soo sor sos sr- srb srd sre srh sro srr srs ss- ssb ssd sse ssh sso ssr sss