-er bbb bbd bbe bbi bbk bbn bbr bdb bdd bde bdi bdk bdr be- beb bed bee bei bek ben ber bi- bib bid bie bii bik bin bir bkb bke bkk bkn bkr bnb bnd bne bni bnk bnn bnr brb brd bre bri brk brn brr dbb dbd dbe dbi dbk dbn dbr ddb ddd dde ddi ddk ddn ddr de- deb ded dee dei dek den der di- dib did die dii dik din dir dkb dke dki dkk dkr dnb dnd dne dni dnk dnn dnr drb drd dre dri drk drn drr ebb ebd ebe ebi ebk ebn ebr ed- edb edd ede edi edk edn edr eeb eed eee eek een eer eib eid eie eii eik ein eir ekb ekd eke eki ekr en- enb end ene eni enk enn enr erb erd ere eri erk ern err i-d ibb ibd ibe ibi ibk ibn ibr idb idd ide idi idk idn idr ie- ied iee iei iek ien ier iib iid iie iii iin iir ikb ike iki ikk ikr in- inb ind ine ini ink inn inr ir- irb ird ire iri irk irn irr kbb kbd kbe kbi kbk kbn kbr kdb kde kdk kdr ke- keb ked kee kei kek ken ker kib kid kie kii kik kin kir kkb kke kki kkk kkn kkr kn- knd kne kni knk knn knr krd kri krk krn krr n-i nbb nbd nbe nbi nbk nbn nbr ndb ndd nde ndi ndk ndn ndr ne- neb ned nee nei nek nen ner nib nid nie nii nik nin nir nke nki nkk nkn nkr nnb nne nni nnk nnn nrb nrd nre nri nrk nrn nrr rbb rbd rbe rbi rbk rbn rbr rdb rdd rde rdi rdn rdr re- reb red ree rei rek ren rer rib rid rie rii rik rin rir rkb rke rkk rnb rnd rni rnn rnr rrb rrd rri rrk rrn rrr