-ic c-- ccc ccd cce cci cck ccl cdc cdd cde cdi cdk cdl ce- cec ced cee cei cek cel ci- cic cid cie cii cik cil ckc ckd cki cl- clc cld cle cli clk cll dcc dcd dce dci dck dcl ddc ddd dde ddi ddk ddl de- dec ded dee dei dek del di- dic did die dii dik dil dkc dke dki dkk dkl dl- dlc dld dle dli dlk dll ec- ecc ecd ece eci eck ecl ed- edc edd ede edi edk edl eec eed eee eek eel eic eid eie eii eik eil ekc ekd eke eki ekl elc eld ele eli elk ell i-d icc icd ice ici ick icl idc idd ide idi idk idl ie- iec ied iee iei iek iel iic iid iie iii iil ikc ike iki ikk ikl il- ilc ild ile ili ilk ill kcc kcd kce kci kck kcl kdc kde kdk kdl ke- kec ked kee kei kek kel kic kid kie kii kik kil kkc kke kki kkk kkl kl- klc kld kli lcc lcd lce lci lck lcl ldc ldd lde ldi ldk ldl lec led lee lei lek lel lic lid lie lii lik lil lkl llc lld lle lli llk lll