-er -th b-p bbb bbd bbe bbh bbo bbp bbr bbt bdb bdd bde bdh bdo bdp bdr bdt be- beb bed bee beh beo bep ber bet bhb bhd bhe bhh bho bhp bhr bht bob bod boe boh boo bop bor bot bpb bpd bpe bph bpo bpp bpr bpt brb brd bre brh bro brp brr brt btb btd bte bth bto btp btr btt dbb dbd dbe dbh dbo dbp dbr dbt ddb ddd dde ddh ddo ddp ddr ddt de- deb ded dee deh deo dep der det dh- dhb dhd dhe dhh dho dhp dhr dht dob dod doe doh doo dop dor dot dpb dpd dpe dph dpo dpp dpr dpt drb drd dre dro drp drr drt dtb dtd dte dth dto dtp dtr dtt ebb ebd ebe ebh ebo ebp ebr ebt ed- edb edd ede edh edo edp edr edt eeb eed eee eeo eep eer eet ehb ehd ehe ehh eho ehp ehr eht eo- eob eod eoe eoh eoo eop eor eot ep- epb epd epe eph epo epp epr ept erb erd ere erh ero erp err ert etb etd ete eth eto etp etr ett hbb hbd hbe hbh hbo hbp hbr hbt hdb hdd hde hdh hdo hdp hdr hdt he- heb hed hee heh heo hep her het hhb hhd hhe hhh hho hhp hhr hht hob hod hoe hoh hoo hop hor hot hpb hpd hpe hph hpo hpp hpr hpt hr- hrb hrd hre hrh hro hrp hrr hrt htb htd hte hth hto htp htr htt ob- obb obd obe obh obo obp obr obt odb odd ode odh odo odp odr odt oeb oed oee oeh oeo oep oer oet ohd ohe ohh oho ohp ohr oht oo- oob ood ooh ooo oop oor oot op- opb opd ope oph opo opp opr opt or- orb ord ore orh oro orp orr ort ot- otb otd ote oth oto otp otr ott p-p pbb pbd pbe pbo pbp pbr pbt pdb pdd pde pdh pdo pdp pdr pdt peb ped pee peh peo pep per pet phb phd phe pho php phr pht pob pod poe poh poo pop por pot ppb ppd ppe pph ppo ppp ppr ppt prb prd pre prh pro prp prr prt pt- ptb ptd pte pth pto ptp ptr ptt rbb rbd rbe rbh rbo rbp rbr rbt rdb rdd rde rdh rdo rdp rdr rdt re- reb red ree reh reo rep rer ret rh- rhb rhd rhe rhh rho rhp rhr rht rob rod roe roh roo rop ror rot rpb rpd rpe rph rpo rpp rpr rpt rrb rrd rrh rrp rrr rrt rtb rtd rte rto rtp rtr rtt tbb tbd tbe tbh tbo tbp tbr tbt tdb tdd tde tdh tdo tdp tdr tdt te- teb ted tee teh teo tep ter tet th- thb thd the thh tho thp thr tht to- tob tod toe toh too top tor tot tpb tpd tpe tph tpo tpp tpr tpt trb trd tre trh tro trp trr trt ttb ttd tte tth tto ttp ttr ttt