-ic bbb bbc bbd bbe bbi bbl bcb bcc bcd bce bci bcl bdb bdc bdd bde bdi bdl be- beb bec bed bee bei bel bi- bib bic bid bie bii bil blb blc bld ble bli bll c-- cbb cbc cbd cbe cbi cbl ccb ccc ccd cce cci ccl cdb cdc cdd cde cdi cdl ce- ceb cec ced cee cei cel ci- cib cic cid cie cii cil cl- clb clc cld cle cli cll dbb dbc dbd dbe dbi dbl dcb dcc dcd dce dci dcl ddb ddc ddd dde ddi ddl de- deb dec ded dee dei del di- dib dic did die dii dil dl- dlb dlc dld dle dli dll ebb ebc ebd ebe ebi ebl ec- ecb ecc ecd ece eci ecl ed- edb edc edd ede edi edl eeb eec eed eee eel eib eic eid eie eii eil elb elc eld ele eli ell i-d ibb ibc ibd ibe ibi ibl icb icc icd ice ici icl idb idc idd ide idi idl ie- iec ied iee iei iel iib iic iid iie iii iil il- ilb ilc ild ile ili ill lbb lbc lbd lbe lbi lbl lcb lcc lcd lce lci lcl ldb ldc ldd lde ldi ldl leb lec led lee lei lel lib lic lid lie lii lil llb llc lld lle lli lll