bbb bbd bbe bbi bbk bbt bdb bdd bde bdi bdk bdt bdz be- beb bed bee bei bek bet bez bi- bib bid bie bii bik bit biz bkb bke bkk bkt btb btd bte bti btk btt btz bzd bze bzz dbb dbd dbe dbi dbk dbt dbz ddb ddd dde ddi ddk ddt ddz de- deb ded dee dei dek det dez di- dib did die dii dik dit diz dkb dke dki dkk dkt dtb dtd dte dti dtk dtt dtz dzb dzd dze dzi ebb ebd ebe ebi ebk ebt ed- edb edd ede edi edk edt eeb eed eee eek eet eib eid eie eii eik eit ekb ekd eke eki ekt etb etd ete eti etk ett etz eze ezz i-d ibb ibd ibe ibi ibk ibt ibz idb idd ide idi idk idt ie- ied iee iei iek iet iib iid iie iii iit ikb ike iki ikk ikt itb itd ite iti itk itt itz ize izi izz k-t k-z kbb kbd kbe kbi kbk kbz kdb kde kdk kdt ke- keb ked kee kei kek ket kez kib kid kie kii kik kit kiz kkb kke kki kkk kkt ktb kte ktk ktt tbb tbd tbe tbi tbk tbt tbz tdb tdd tde tdi tdk tdt te- teb ted tee tei tek tet tez tib tid tie tii tik tit tiz tkb tke tkk tkt tkz ttb ttd tte tti ttk ttt tzd tze zbb zbt zdt zeb zed zee zek zet zez zib zid zie zik zit ziz zte zzt zzz