-ic c-- ccc cce cci ccn ccp ccs ce- cec cee cei cen cep ces ci- cic cie cii cin cip cis cn- cnc cne cni cnn cnp cns cpc cpe cpi cpn cpp cps csc cse csi csn csp css ec- ecc ece eci ecn ecs eec eee een eep ees eic eie eii ein eip eis en- enc ene eni enn enp ens ep- epc epe epi epn epp eps es- esc ese esi esn esp ess icc ice ici icn icp ics ie- iec iee iei ien iep ies iic iie iii iin iip iis in- inc ine ini inn inp ins ipc ipe ipi ipn ipp ips is- isc ise isi isn isp iss n-i ncc nce nci ncn ncp ncs ne- nec nee nei nen nep nes nic nie nii nin nip nis nnc nne nni nnn nnp nns npc npe npi npn npp nps nsc nse nsi nsn nsp nss p-p pcc pce pci pcn pcp pcs pec pee pei pen pep pes pic pie pii pin pip pis pn- pnc pne pni pnn pnp pns ppc ppe ppi ppn ppp pps ps- psc pse psi psn psp pss scc sce sci scn scp scs se- sec see sei sen sep ses sic sie sii sin sip sis snc sne sni snn snp sns spc spe spi spn spp sps ss- ssc sse ssi ssn ssp sss