-er bbb bbc bbd bbe bbh bbn bbr bcb bcc bcd bce bch bcn bcr bdb bdc bdd bde bdh bdr be- beb bec bed bee beh ben ber bhb bhc bhd bhe bhh bhr bnb bnc bnd bne bnn bnr brb brd bre brh brn brr c-- cbb cbc cbd cbe cbh cbn cbr ccb ccc ccd cce cch ccn ccr cdb cdc cdd cde cdh cdn cdr ce- ceb cec ced cee ceh cen cer ch- chb chc chd che chh chn chr cn- cnb cnc cnd cne cnh cnn cnr crb crc crd cre crh crn crr dbb dbc dbd dbe dbh dbn dbr dcb dcc dcd dce dcn dcr ddb ddc ddd dde ddh ddn ddr de- deb dec ded dee deh den der dh- dhb dhc dhd dhe dhh dhr dnb dnc dnd dne dnh dnn dnr drb drc drd dre drn drr ebb ebc ebd ebe ebh ebn ebr ec- ecb ecc ecd ece ech ecn ecr ed- edb edc edd ede edh edn edr eeb eec eed eee een eer ehb ehc ehd ehe ehh ehn ehr en- enb enc end ene enh enn enr erb erc erd ere erh ern err hbb hbc hbd hbe hbh hbn hbr hcb hcc hcd hce hch hcn hcr hdb hdc hdd hde hdh hdn hdr he- heb hec hed hee heh hen her hhb hhc hhd hhe hhh hhn hhr hnb hnc hnd hne hnh hnn hr- hrb hrc hrd hre hrh hrn hrr nbb nbc nbd nbe nbn nbr ncb ncc ncd nce nch ncn ncr ndb ndc ndd nde ndh ndn ndr ne- neb nec ned nee neh nen ner nhb nhc nhd nhe nhh nhn nhr nnb nnc nne nnh nnn nrb nrc nrd nre nrn nrr rbb rbc rbd rbe rbh rbn rbr rcb rcc rcd rce rch rcn rcr rdb rdc rdd rde rdh rdn rdr re- reb rec red ree reh ren rer rh- rhb rhc rhd rhe rhh rhn rhr rnb rnc rnd rnh rnn rnr rrb rrc rrd rrh rrn rrr