-ic c-- ccc cce cci cck ccs ce- cec cee cei cek ces ci- cic cie cii cik cis ckc cki cks csc cse csi csk css ec- ecc ece eci eck ecs eec eee eek ees eic eie eii eik eis ekc eke eki eks es- esc ese esi esk ess icc ice ici ick ics ie- iec iee iei iek ies iic iie iii iis ikc ike iki ikk iks is- isc ise isi isk iss kcc kce kci kck kcs ke- kec kee kei kek kes kic kie kii kik kis kkc kke kki kkk kks ksc kse ksi ksk kss scc sce sci sck scs se- sec see sei sek ses sic sie sii sik sis sk- skc ske ski skk sks ss- ssc sse ssi ssk sss