-er b-p bbb bbd bbe bbh bbo bbp bbr bbs bdb bdd bde bdh bdo bdp bdr bds be- beb bed bee beh beo bep ber bes bhb bhd bhe bhh bho bhp bhr bhs bob bod boe boh boo bop bor bos bpb bpd bpe bph bpo bpp bpr bps brb brd bre brh bro brp brr brs bsb bsd bse bsh bso bsp bsr bss dbb dbd dbe dbh dbo dbp dbr dbs ddb ddd dde ddh ddo ddp ddr dds de- deb ded dee deh deo dep der des dh- dhb dhd dhe dhh dho dhp dhr dhs dob dod doe doh doo dop dor dos dpb dpd dpe dph dpo dpp dpr dps drb drd dre dro drp drr drs dsb dsd dse dsh dso dsp dsr dss ebb ebd ebe ebh ebo ebp ebr ebs ed- edb edd ede edh edo edp edr eds eeb eed eee eeo eep eer ees ehb ehd ehe ehh eho ehp ehr ehs eo- eob eod eoe eoh eoo eop eor eos ep- epb epd epe eph epo epp epr eps erb erd ere erh ero erp err ers es- esb esd ese esh eso esp esr ess hbb hbd hbe hbh hbo hbp hbr hbs hdb hdd hde hdh hdo hdp hdr hds he- heb hed hee heh heo hep her hes hhb hhd hhe hhh hho hhp hhr hhs hob hod hoe hoh hoo hop hor hos hpb hpd hpe hph hpo hpp hpr hps hr- hrb hrd hre hrh hro hrp hrr hrs hsb hsd hse hsh hsp hsr hss ob- obb obd obe obh obo obp obr obs odb odd ode odh odo odp odr ods oeb oed oee oeh oeo oep oer oes ohd ohe ohh oho ohp ohr ohs oo- oob ood ooh ooo oop oor oos op- opb opd ope oph opo opp opr ops or- orb ord ore orh oro orp orr ors os- osb osd ose osh oso osp osr oss p-p pbb pbd pbe pbo pbp pbr pbs pdb pdd pde pdh pdo pdp pdr pds peb ped pee peh peo pep per pes phb phd phe pho php phr phs pob pod poe poh poo pop por pos ppb ppd ppe pph ppo ppp ppr pps prb prd pre prh pro prp prr prs ps- psb psd pse psh pso psp psr pss rbb rbd rbe rbh rbo rbp rbr rbs rdb rdd rde rdh rdo rdp rdr rds re- reb red ree reh reo rep rer res rh- rhb rhd rhe rhh rho rhp rhr rhs rob rod roe roh roo rop ror ros rpb rpd rpe rph rpo rpp rpr rps rrb rrd rrh rrp rrr rrs rsb rsd rse rsh rso rsp rsr rss sbb sbd sbe sbh sbo sbp sbr sbs sdb sdd sde sdh sdo sdp sdr sds se- seb sed see seh seo sep ser ses sh- shb shd she shh sho shp shr shs sob sod soe soh soo sop sor sos spb spd spe sph spo spp spr sps sr- srb srd sre srh sro srp srr srs ss- ssb ssd sse ssh sso ssp ssr sss