-ic c-- ccc cce ccf cci cck ccp ccs ce- cec cee cef cei cek cep ces cfc cfe cff cfi cfk cfp cfs ci- cic cie cif cii cik cip cis ckc cki cks cpc cpe cpf cpi cpk cpp cps csc cse csf csi csk csp css ec- ecc ece ecf eci eck ecs eec eee eef eek eep ees ef- efc efe eff efi efp efs eic eie eif eii eik eip eis ekc eke ekf eki ekp eks ep- epc epe epf epi epp eps es- esc ese esf esi esk esp ess fcc fce fcf fci fck fcp fcs fec fee fef fei fek fep fes ffc ffe fff ffi ffk ffp ffs fic fie fif fii fik fip fis fkc fkf fki fkk fkp fpc fpe fpi fpk fpp fps fsc fse fsf fsi fsk fsp fss i-f icc ice icf ici ick icp ics ie- iec iee ief iei iek iep ies ifc ife iff ifi ifp ifs iic iie iif iii iip iis ikc ike ikf iki ikk iks ipc ipe ipf ipi ipp ips is- isc ise isf isi isk isp iss kcc kce kci kck kcp kcs ke- kec kee kef kei kek kep kes kfc kff kfi kfs kic kie kif kii kik kip kis kkc kke kki kkk kkp kks kpc kpe kpf kpi kpk kpp kps ksc kse ksf ksi ksk ksp kss p-p pcc pce pcf pci pck pcp pcs pec pee pef pei pek pep pes pfc pfe pff pfi pfk pfp pfs pic pie pif pii pik pip pis pkc pke pkf pki pkp pks ppc ppe ppf ppi ppk ppp pps ps- psc pse psf psi psk psp pss scc sce scf sci sck scp scs se- sec see sef sei sek sep ses sfc sfe sff sfi sfk sfp sfs sic sie sif sii sik sip sis sk- skc ske skf ski skk skp sks spc spe spf spi spk spp sps ss- ssc sse ssf ssi ssk ssp sss