-er bbb bbe bbf bbg bbi bbl bbn bbr be- beb bee bef beg bei bel ben ber bfb bfe bff bfg bfi bfl bfn bfr bgb bge bgf bgg bgi bgl bgn bgr bi- bib bie bif big bii bil bin bir blb ble blf blg bli bll bln blr bnb bne bnf bng bni bnl bnn bnr brb bre brf brg bri brl brn brr ebb ebe ebf ebg ebi ebl ebn ebr eeb eee eef eeg eel een eer ef- efb efe eff efg efi efl efr egb ege egf egg egi egl egn egr eib eie eif eig eii eil ein eir elb ele elf elg eli ell eln elr en- enb ene enf eng eni enl enn enr erb ere erf erg eri erl ern err fbb fbe fbf fbg fbi fbl fbn fbr feb fee fef feg fei fel fen fer ffe fff ffg ffi ffl ffn ffr fgb fge fgf fgg fgi fgl fgn fgr fib fie fif fig fii fil fin fir flb fle flf flg fli fll fln flr fnb fne fnf fng fni fnl fnn fnr frb fre frf frg fri frl frn frr gbe gbf gbg gbi gbl gbn gbr ge- geb gee gef geg gei gel gen ger gfb gfe gff gfi gfl gfr ggb ggg ggi ggn ggr gib gie gif gig gii gil gin gir glb gle glf glg gli gll gln glr gnb gne gnf gni gnl gnn gnr grb gre grf grg gri grl grn grr i-f ibb ibe ibf ibg ibi ibl ibn ibr ie- iee ief ieg iei iel ien ier ifb ife iff ifg ifi ifl ifn ifr igb ige igf igg igi igl ign igr iib iie iif iii iil iin iir il- ilb ile ilf ilg ili ill iln ilr in- inb ine inf ing ini inl inn inr ir- irb ire irf irg iri irl irn irr lbb lbe lbf lbg lbi lbl lbr leb lee lef leg lei lel len ler lfb lfe lff lfg lfi lfl lfn lfr lgb lge lgf lgg lgi lgl lgn lgr lib lie lif lig lii lil lin lir llb lle llf llg lli lll lln llr lnb lne lng lni lnl lnn lnr lrb lrf lrg lri lrn lrr n-i nbb nbe nbf nbg nbi nbl nbn nbr ne- neb nee nef neg nei nel nen ner nfb nfe nff nfi nfl nfn nfr ngb nge ngf ngg ngi ngl ngn nib nie nif nig nii nil nin nir nlb nle nlf nlg nli nll nln nlr nnb nne nnf nng nni nnl nnn nrb nre nrf nrg nri nrl nrn nrr rbb rbe rbf rbg rbi rbl rbn rbr re- reb ree ref reg rei rel ren rer rfb rfe rff rfg rfi rfl rfn rfr rgb rge rgf rgg rgi rgn rgr rib rie rif rig rii ril rin rir rle rlf rlg rli rll rln rlr rnb rng rni rnn rnr rrb rrf rrg rri rrl rrn rrr