-ic c-- ccc cce cci cck ccn ccp ccs ce- cec cee cei cek cen cep ces ci- cic cie cii cik cin cip cis ckc cki cks cn- cnc cne cni cnn cnp cns cpc cpe cpi cpk cpn cpp cps csc cse csi csk csn csp css ec- ecc ece eci eck ecn ecs eec eee eek een eep ees eic eie eii eik ein eip eis ekc eke eki ekp eks en- enc ene eni enk enn enp ens ep- epc epe epi epn epp eps es- esc ese esi esk esn esp ess icc ice ici ick icn icp ics ie- iec iee iei iek ien iep ies iic iie iii iin iip iis ikc ike iki ikk iks in- inc ine ini ink inn inp ins ipc ipe ipi ipn ipp ips is- isc ise isi isk isn isp iss kcc kce kci kck kcn kcp kcs ke- kec kee kei kek ken kep kes kic kie kii kik kin kip kis kkc kke kki kkk kkn kkp kks kn- knc kne kni knk knn knp kpc kpe kpi kpk kpn kpp kps ksc kse ksi ksk ksn ksp kss n-i ncc nce nci nck ncn ncp ncs ne- nec nee nei nek nen nep nes nic nie nii nik nin nip nis nkc nke nki nkk nkn nkp nks nnc nne nni nnk nnn nnp nns npc npe npi npn npp nps nsc nse nsi nsk nsn nsp nss p-p pcc pce pci pck pcn pcp pcs pec pee pei pek pen pep pes pic pie pii pik pin pip pis pkc pke pki pkn pkp pks pn- pnc pne pni pnk pnn pnp pns ppc ppe ppi ppk ppn ppp pps ps- psc pse psi psk psn psp pss scc sce sci sck scn scp scs se- sec see sei sek sen sep ses sic sie sii sik sin sip sis sk- skc ske ski skk skp sks snc sne sni snk snn snp sns spc spe spi spk spn spp sps ss- ssc sse ssi ssk ssn ssp sss