-er bbb bbe bbn bbr bbs be- beb bee ben ber bes bjj bjn bjr bjs bnb bne bnj bnn bnr bns brb bre brj brn brr brs bsb bse bsj bsn bsr bss ebb ebe ebj ebn ebr ebs eeb eee een eer ees en- enb ene enn enr ens erb ere ern err ers es- esb ese esn esr ess jbj jbr jbs jeb jee jej jen jer jes jjb jjj jjr jjs jne jnj jnn jnr jns jrb jrn jrr jrs jsb jse jsj jsn jsr jss nbb nbe nbn nbr nbs ne- neb nee nej nen ner nes nje njn njs nnb nne nnn nns nrb nre nrj nrn nrr nrs nsb nse nsn nsr nss rbb rbe rbn rbr rbs re- reb ree ren rer res rjr rnb rnn rnr rns rrb rrn rrr rrs rsb rse rsj rsn rsr rss sbb sbe sbj sbn sbr sbs se- seb see sej sen ser ses sjb sje sjj sjr sjs snb sne snj snn snr sns sr- srb sre srj srn srr srs ss- ssb sse ssj ssn ssr sss