bbb bbd bbe bbi bbk bbn bdb bdd bde bdi bdk be- beb bed bee bei bek ben bi- bib bid bie bii bik bin bkb bke bkk bkn bnb bnd bne bni bnk bnn dbb dbd dbe dbi dbk dbn ddb ddd dde ddi ddk ddn de- deb ded dee dei dek den di- dib did die dii dik din dkb dke dki dkk dnb dnd dne dni dnk dnn ebb ebd ebe ebi ebk ebn ed- edb edd ede edi edk edn eeb eed eee eek een eib eid eie eii eik ein ekb ekd eke eki en- enb end ene eni enk enn i-d ibb ibd ibe ibi ibk ibn idb idd ide idi idk idn ie- ied iee iei iek ien iib iid iie iii iin ikb ike iki ikk in- inb ind ine ini ink inn kbb kbd kbe kbi kbk kbn kdb kde kdk ke- keb ked kee kei kek ken kib kid kie kii kik kin kkb kke kki kkk kkn kn- knd kne kni knk knn n-i nbb nbd nbe nbi nbk nbn ndb ndd nde ndi ndk ndn ne- neb ned nee nei nek nen nib nid nie nii nik nin nke nki nkk nkn nnb nne nni nnk nnn