bbb bbd bbe bbi bbk bbl bdb bdd bde bdi bdk bdl be- beb bed bee bei bek bel bi- bib bid bie bii bik bil bkb bke bkk bkl blb bld ble bli blk bll dbb dbd dbe dbi dbk dbl ddb ddd dde ddi ddk ddl de- deb ded dee dei dek del di- dib did die dii dik dil dkb dke dki dkk dkl dl- dlb dld dle dli dlk dll ebb ebd ebe ebi ebk ebl ed- edb edd ede edi edk edl eeb eed eee eek eel eib eid eie eii eik eil ekb ekd eke eki ekl elb eld ele eli elk ell i-d ibb ibd ibe ibi ibk ibl idb idd ide idi idk idl ie- ied iee iei iek iel iib iid iie iii iil ikb ike iki ikk ikl il- ilb ild ile ili ilk ill kbb kbd kbe kbi kbk kbl kdb kde kdk kdl ke- keb ked kee kei kek kel kib kid kie kii kik kil kkb kke kki kkk kkl kl- klb kld kli lbb lbd lbe lbi lbk lbl ldb ldd lde ldi ldk ldl leb led lee lei lek lel lib lid lie lii lik lil lkb lkl llb lld lle lli llk lll