-er bbb bbe bbf bbg bbl bbn bbr be- beb bee bef beg bel ben ber bfb bfe bff bfg bfl bfn bfr bgb bge bgf bgg bgl bgn bgr blb ble blf blg bll bln blr bnb bne bnf bng bnl bnn bnr brb bre brf brg brl brn brr ebb ebe ebf ebg ebl ebn ebr eeb eee eef eeg eel een eer ef- efb efe eff efg efl efr egb ege egf egg egl egn egr elb ele elf elg ell eln elr en- enb ene enf eng enl enn enr erb ere erf erg erl ern err fbb fbe fbf fbg fbl fbn fbr feb fee fef feg fel fen fer ffe fff ffg ffl ffn ffr fgb fge fgf fgg fgl fgn fgr flb fle flf flg fll fln flr fnb fne fnf fng fnl fnn fnr frb fre frf frg frl frn frr gbe gbf gbg gbl gbn gbr ge- geb gee gef geg gel gen ger gfb gfe gff gfl gfr ggb ggg ggn ggr glb gle glf glg gll gln glr gnb gne gnf gnl gnn gnr grb gre grf grg grl grn grr lbb lbe lbf lbg lbl lbr leb lee lef leg lel len ler lfb lfe lff lfg lfl lfn lfr lgb lge lgf lgg lgl lgn lgr llb lle llf llg lll lln llr lnb lne lng lnl lnn lnr lrb lrf lrg lrn lrr nbb nbe nbf nbg nbl nbn nbr ne- neb nee nef neg nel nen ner nfb nfe nff nfl nfn nfr ngb nge ngf ngg ngl ngn nlb nle nlf nlg nll nln nlr nnb nne nnf nng nnl nnn nrb nre nrf nrg nrl nrn nrr rbb rbe rbf rbg rbl rbn rbr re- reb ree ref reg rel ren rer rfb rfe rff rfg rfl rfn rfr rgb rge rgf rgg rgn rgr rle rlf rlg rll rln rlr rnb rng rnn rnr rrb rrf rrg rrl rrn rrr