-ic c-- ccc cce cci cck ccp ccs ce- cec cee cei cek cep ces ci- cic cie cii cik cip cis ckc cki cks cpc cpe cpi cpk cpp cps csc cse csi csk csp css ec- ecc ece eci eck ecs eec eee eek eep ees eic eie eii eik eip eis ekc eke eki ekp eks ep- epc epe epi epp eps es- esc ese esi esk esp ess icc ice ici ick icp ics ie- iec iee iei iek iep ies iic iie iii iip iis ikc ike iki ikk iks ipc ipe ipi ipp ips is- isc ise isi isk isp iss kcc kce kci kck kcp kcs ke- kec kee kei kek kep kes kic kie kii kik kip kis kkc kke kki kkk kkp kks kpc kpe kpi kpk kpp kps ksc kse ksi ksk ksp kss p-p pcc pce pci pck pcp pcs pec pee pei pek pep pes pic pie pii pik pip pis pkc pke pki pkp pks ppc ppe ppi ppk ppp pps ps- psc pse psi psk psp pss scc sce sci sck scp scs se- sec see sei sek sep ses sic sie sii sik sip sis sk- skc ske ski skk skp sks spc spe spi spk spp sps ss- ssc sse ssi ssk ssp sss