-ey -ic c-- ccc cce cci cck ccs ce- cec cee cei cek ces cey ci- cic cie cii cik cis ckc cki cks cky csc cse csi csk css csy cyc cye cyk cys ec- ecc ece eci eck ecs eec eee eek ees eey eic eie eii eik eis ekc eke eki eks eky es- esc ese esi esk ess esy eyc eye eys icc ice ici ick ics icy ie- iec iee iei iek ies iey iic iie iii iis ikc ike iki ikk iks is- isc ise isi isk iss isy iyc iye iys iyy kcc kce kci kck kcs ke- kec kee kei kek kes key kic kie kii kik kis kkc kke kki kkk kks kky ksc kse ksi ksk kss kyc kye kys scc sce sci sck scs se- sec see sei sek ses sey sic sie sii sik sis sk- skc ske ski skk sks sky ss- ssc sse ssi ssk sss sy- syc sye syi syk sys ycc yce yci ycs ycy yec yee yei yek yes yey yie yii yis yki ykk ysc yse ysi ysk yss ysy yyc yye yys yyy