-ic bbb bbc bbd bbe bbi bbk bcb bcc bcd bce bci bck bcz bdb bdc bdd bde bdi bdk bdz be- beb bec bed bee bei bek bez bi- bib bic bid bie bii bik biz bkb bkc bke bkk bzd bze bzz c-- cbb cbc cbd cbe cbi cbk cbz ccb ccc ccd cce cci cck ccz cdb cdc cdd cde cdi cdk cdz ce- ceb cec ced cee cei cek cez ci- cib cic cid cie cii cik ckb ckc ckd cki cz- czc czd cze czk dbb dbc dbd dbe dbi dbk dbz dcb dcc dcd dce dci dck ddb ddc ddd dde ddi ddk ddz de- deb dec ded dee dei dek dez di- dib dic did die dii dik diz dkb dkc dke dki dkk dzb dzd dze dzi ebb ebc ebd ebe ebi ebk ec- ecb ecc ecd ece eci eck ed- edb edc edd ede edi edk eeb eec eed eee eek eib eic eid eie eii eik ekb ekc ekd eke eki eze ezz i-d ibb ibc ibd ibe ibi ibk ibz icb icc icd ice ici ick icz idb idc idd ide idi idk ie- iec ied iee iei iek iib iic iid iie iii ikb ikc ike iki ikk ize izi izz k-z kbb kbc kbd kbe kbi kbk kbz kcb kcc kcd kce kci kck kdb kdc kde kdk ke- keb kec ked kee kei kek kez kib kic kid kie kii kik kiz kkb kkc kke kki kkk zbb zbc zce zeb zec zed zee zek zez zib zid zie zik ziz zzz