-ic c-- ccc cce cci ccp ccs ce- cec cee cei cep ces ci- cic cie cii cip cis cpc cpe cpi cpp cps csc cse csi csp css ec- ecc ece eci ecs eec eee eep ees eic eie eii eip eis ep- epc epe epi epp eps es- esc ese esi esp ess icc ice ici icp ics ie- iec iee iei iep ies iic iie iii iip iis ipc ipe ipi ipp ips is- isc ise isi isp iss p-p pcc pce pci pcp pcs pec pee pei pep pes pic pie pii pip pis ppc ppe ppi ppp pps ps- psc pse psi psp pss scc sce sci scp scs se- sec see sei sep ses sic sie sii sip sis spc spe spi spp sps ss- ssc sse ssi ssp sss