-er bbb bbe bbh bbn bbr be- beb bee beh ben ber bhb bhe bhh bhr bnb bne bnn bnr brb bre brh brn brr ebb ebe ebh ebn ebr eeb eee een eer ehb ehe ehh ehn ehr en- enb ene enh enn enr erb ere erh ern err hbb hbe hbh hbn hbr he- heb hee heh hen her hhb hhe hhh hhn hhr hnb hne hnh hnn hr- hrb hre hrh hrn hrr nbb nbe nbn nbr ne- neb nee neh nen ner nhb nhe nhh nhn nhr nnb nne nnh nnn nrb nre nrn nrr rbb rbe rbh rbn rbr re- reb ree reh ren rer rh- rhb rhe rhh rhn rhr rnb rnh rnn rnr rrb rrh rrn rrr