-er bbb bbd bbe bbh bbn bbr bdb bdd bde bdh bdr be- beb bed bee beh ben ber bhb bhd bhe bhh bhr bnb bnd bne bnn bnr brb brd bre brh brn brr dbb dbd dbe dbh dbn dbr ddb ddd dde ddh ddn ddr de- deb ded dee deh den der dh- dhb dhd dhe dhh dhr dnb dnd dne dnh dnn dnr drb drd dre drn drr ebb ebd ebe ebh ebn ebr ed- edb edd ede edh edn edr eeb eed eee een eer ehb ehd ehe ehh ehn ehr en- enb end ene enh enn enr erb erd ere erh ern err hbb hbd hbe hbh hbn hbr hdb hdd hde hdh hdn hdr he- heb hed hee heh hen her hhb hhd hhe hhh hhn hhr hnb hnd hne hnh hnn hr- hrb hrd hre hrh hrn hrr nbb nbd nbe nbn nbr ndb ndd nde ndh ndn ndr ne- neb ned nee neh nen ner nhb nhd nhe nhh nhn nhr nnb nne nnh nnn nrb nrd nre nrn nrr rbb rbd rbe rbh rbn rbr rdb rdd rde rdh rdn rdr re- reb red ree reh ren rer rh- rhb rhd rhe rhh rhn rhr rnb rnd rnh rnn rnr rrb rrd rrh rrn rrr