-er bbb bbd bbe bbi bbk bbl bbr bdb bdd bde bdi bdk bdl bdr be- beb bed bee bei bek bel ber bi- bib bid bie bii bik bil bir bkb bke bkk bkl bkr blb bld ble bli blk bll blr brb brd bre bri brk brl brr dbb dbd dbe dbi dbk dbl dbr ddb ddd dde ddi ddk ddl ddr de- deb ded dee dei dek del der di- dib did die dii dik dil dir dkb dke dki dkk dkl dkr dl- dlb dld dle dli dlk dll dlr drb drd dre dri drk drl drr ebb ebd ebe ebi ebk ebl ebr ed- edb edd ede edi edk edl edr eeb eed eee eek eel eer eib eid eie eii eik eil eir ekb ekd eke eki ekl ekr elb eld ele eli elk ell elr erb erd ere eri erk erl err i-d ibb ibd ibe ibi ibk ibl ibr idb idd ide idi idk idl idr ie- ied iee iei iek iel ier iib iid iie iii iil iir ikb ike iki ikk ikl ikr il- ilb ild ile ili ilk ill ilr ir- irb ird ire iri irk irl irr kbb kbd kbe kbi kbk kbl kbr kdb kde kdk kdl kdr ke- keb ked kee kei kek kel ker kib kid kie kii kik kil kir kkb kke kki kkk kkl kkr kl- klb kld kli klr krd kri krk krl krr lbb lbd lbe lbi lbk lbl lbr ldb ldd lde ldi ldk ldl ldr leb led lee lei lek lel ler lib lid lie lii lik lil lir lkb lkl lkr llb lld lle lli llk lll llr lrb lrd lri lrk lrr rbb rbd rbe rbi rbk rbl rbr rdb rdd rde rdi rdl rdr re- reb red ree rei rek rel rer rib rid rie rii rik ril rir rkb rke rkk rld rle rli rll rlr rrb rrd rri rrk rrl rrr