-er bbb bbd bbe bbf bbi bbl bbn bbr bbs bdb bdd bde bdf bdi bdl bdr bds be- beb bed bee bef bei bel ben ber bes bfb bfd bfe bff bfi bfl bfn bfr bfs bi- bib bid bie bif bii bil bin bir bis blb bld ble blf bli bll bln blr bls bnb bnd bne bnf bni bnl bnn bnr bns brb brd bre brf bri brl brn brr brs bsb bsd bse bsf bsi bsl bsn bsr bss dbb dbd dbe dbf dbi dbl dbn dbr dbs ddb ddd dde ddf ddi ddl ddn ddr dds de- deb ded dee def dei del den der des dfb dfd dfe dff dfi dfl dfn dfr dfs di- dib did die dif dii dil din dir dis dl- dlb dld dle dlf dli dll dlr dls dnb dnd dne dnf dni dnl dnn dnr dns drb drd dre dri drl drn drr drs dsb dsd dse dsf dsi dsl dsn dsr dss ebb ebd ebe ebf ebi ebl ebn ebr ebs ed- edb edd ede edf edi edl edn edr eds eeb eed eee eef eel een eer ees ef- efb efd efe eff efi efl efr efs eib eid eie eif eii eil ein eir eis elb eld ele elf eli ell eln elr els en- enb end ene enf eni enl enn enr ens erb erd ere erf eri erl ern err ers es- esb esd ese esf esi esl esn esr ess fbb fbd fbe fbf fbi fbl fbn fbr fbs fdb fdd fde fdf fdi fdl fdn fdr fds feb fed fee fef fei fel fen fer fes ffd ffe fff ffi ffl ffn ffr ffs fib fid fie fif fii fil fin fir fis flb fld fle flf fli fll fln flr fls fnb fnd fne fnf fni fnl fnn fnr fns frb frd fre frf fri frl frn frr frs fsb fsd fse fsf fsi fsl fsn fsr fss i-d i-f ibb ibd ibe ibf ibi ibl ibn ibr ibs idb idd ide idf idi idl idn idr ids ie- ied iee ief iei iel ien ier ies ifb ifd ife iff ifi ifl ifn ifr ifs iib iid iie iif iii iil iin iir iis il- ilb ild ile ilf ili ill iln ilr ils in- inb ind ine inf ini inl inn inr ins ir- irb ird ire irf iri irl irn irr irs is- isb isd ise isf isi isl isn isr iss lbb lbd lbe lbf lbi lbl lbr lbs ldb ldd lde ldf ldi ldl ldn ldr lds leb led lee lef lei lel len ler les lfb lfd lfe lff lfi lfl lfn lfr lfs lib lid lie lif lii lil lin lir lis llb lld lle llf lli lll lln llr lls lnb lnd lne lni lnl lnn lnr lns lrb lrd lrf lri lrn lrr lrs lsb lsd lse lsf lsi lsl lsn lsr lss n-i nbb nbd nbe nbf nbi nbl nbn nbr nbs ndb ndd nde ndf ndi ndl ndn ndr nds ne- neb ned nee nef nei nel nen ner nes nfb nfd nfe nff nfi nfl nfn nfr nfs nib nid nie nif nii nil nin nir nis nlb nld nle nlf nli nll nln nlr nls nnb nne nnf nni nnl nnn nns nrb nrd nre nrf nri nrl nrn nrr nrs nsb nsd nse nsf nsi nsl nsn nsr nss rbb rbd rbe rbf rbi rbl rbn rbr rbs rdb rdd rde rdf rdi rdl rdn rdr rds re- reb red ree ref rei rel ren rer res rfb rfd rfe rff rfi rfl rfn rfr rfs rib rid rie rif rii ril rin rir ris rld rle rlf rli rll rln rlr rls rnb rnd rni rnn rnr rns rrb rrd rrf rri rrl rrn rrr rrs rsb rsd rse rsf rsi rsl rsn rsr rss sbb sbd sbe sbf sbi sbl sbn sbr sbs sdb sdd sde sdf sdi sdl sdn sdr sds se- seb sed see sef sei sel sen ser ses sfb sfd sfe sff sfi sfl sfn sfr sfs sib sid sie sif sii sil sin sir sis slb sld sle slf sli sll sln slr sls snb snd sne snf sni snl snn snr sns sr- srb srd sre srf sri srl srn srr srs ss- ssb ssd sse ssf ssi ssl ssn ssr sss