-ic c-- ccc cce ccf cci cck ce- cec cee cef cei cek cfc cfe cff cfi cfk ci- cic cie cif cii cik ckc cki ec- ecc ece ecf eci eck eec eee eef eek ef- efc efe eff efi eic eie eif eii eik ekc eke ekf eki fcc fce fcf fci fck fec fee fef fei fek ffc ffe fff ffi ffk fic fie fif fii fik fkc fkf fki fkk i-f icc ice icf ici ick ie- iec iee ief iei iek ifc ife iff ifi iic iie iif iii ikc ike ikf iki ikk kcc kce kci kck ke- kec kee kef kei kek kfc kff kfi kic kie kif kii kik kkc kke kki kkk