-er bbb bbd bbe bbf bbi bbk bbl bbn bbr bdb bdd bde bdf bdi bdk bdl bdr be- beb bed bee bef bei bek bel ben ber bfb bfd bfe bff bfi bfl bfn bfr bi- bib bid bie bif bii bik bil bin bir bkb bke bkf bkk bkl bkn bkr blb bld ble blf bli blk bll bln blr bnb bnd bne bnf bni bnk bnl bnn bnr brb brd bre brf bri brk brl brn brr dbb dbd dbe dbf dbi dbk dbl dbn dbr ddb ddd dde ddf ddi ddk ddl ddn ddr de- deb ded dee def dei dek del den der dfb dfd dfe dff dfi dfk dfl dfn dfr di- dib did die dif dii dik dil din dir dkb dke dki dkk dkl dkr dl- dlb dld dle dlf dli dlk dll dlr dnb dnd dne dnf dni dnk dnl dnn dnr drb drd dre dri drk drl drn drr ebb ebd ebe ebf ebi ebk ebl ebn ebr ed- edb edd ede edf edi edk edl edn edr eeb eed eee eef eek eel een eer ef- efb efd efe eff efi efl efr eib eid eie eif eii eik eil ein eir ekb ekd eke ekf eki ekl ekr elb eld ele elf eli elk ell eln elr en- enb end ene enf eni enk enl enn enr erb erd ere erf eri erk erl ern err fbb fbd fbe fbf fbi fbk fbl fbn fbr fdb fdd fde fdf fdi fdk fdl fdn fdr feb fed fee fef fei fek fel fen fer ffd ffe fff ffi ffk ffl ffn ffr fib fid fie fif fii fik fil fin fir fkb fkf fki fkk fkl flb fld fle flf fli fll fln flr fnb fnd fne fnf fni fnk fnl fnn fnr frb frd fre frf fri frk frl frn frr i-d i-f ibb ibd ibe ibf ibi ibk ibl ibn ibr idb idd ide idf idi idk idl idn idr ie- ied iee ief iei iek iel ien ier ifb ifd ife iff ifi ifl ifn ifr iib iid iie iif iii iil iin iir ikb ike ikf iki ikk ikl ikr il- ilb ild ile ilf ili ilk ill iln ilr in- inb ind ine inf ini ink inl inn inr ir- irb ird ire irf iri irk irl irn irr kbb kbd kbe kbf kbi kbk kbl kbn kbr kdb kde kdf kdk kdl kdr ke- keb ked kee kef kei kek kel ken ker kfd kff kfi kib kid kie kif kii kik kil kin kir kkb kke kki kkk kkl kkn kkr kl- klb kld klf kli klr kn- knd kne knf kni knk knl knn knr krd krf kri krk krl krn krr lbb lbd lbe lbf lbi lbk lbl lbr ldb ldd lde ldf ldi ldk ldl ldn ldr leb led lee lef lei lek lel len ler lfb lfd lfe lff lfi lfk lfl lfn lfr lib lid lie lif lii lik lil lin lir lkb lkl lkr llb lld lle llf lli llk lll lln llr lnb lnd lne lni lnk lnl lnn lnr lrb lrd lrf lri lrk lrn lrr n-i nbb nbd nbe nbf nbi nbk nbl nbn nbr ndb ndd nde ndf ndi ndk ndl ndn ndr ne- neb ned nee nef nei nek nel nen ner nfb nfd nfe nff nfi nfk nfl nfn nfr nib nid nie nif nii nik nil nin nir nke nkf nki nkk nkn nkr nlb nld nle nlf nli nlk nll nln nlr nnb nne nnf nni nnk nnl nnn nrb nrd nre nrf nri nrk nrl nrn nrr rbb rbd rbe rbf rbi rbk rbl rbn rbr rdb rdd rde rdf rdi rdl rdn rdr re- reb red ree ref rei rek rel ren rer rfb rfd rfe rff rfi rfk rfl rfn rfr rib rid rie rif rii rik ril rin rir rkb rke rkf rkk rld rle rlf rli rll rln rlr rnb rnd rni rnn rnr rrb rrd rrf rri rrk rrl rrn rrr