-ic c-- ccc cce cci ccm ccp ccs ce- cec cee cei cem cep ces ci- cic cie cii cim cip cis cmc cme cmi cmm cmp cms cpc cpe cpi cpm cpp cps csc cse csi csm csp css ec- ecc ece eci ecm ecs eec eee eem eep ees eic eie eii eim eip eis em- emc eme emi emm emp ems ep- epc epe epi epm epp eps es- esc ese esi esm esp ess icc ice ici icm icp ics ie- iec iee iei iem iep ies iic iie iii iim iip iis im- imc ime imi imm imp ims ipc ipe ipi ipm ipp ips is- isc ise isi ism isp iss mc- mcc mce mci mcm mcp mcs mec mee mei mem mep mes mi- mic mie mii mim mip mis mmc mme mmi mmm mmp mms mpc mpe mpi mpm mpp mps msc mse msi msm msp mss p-p pcc pce pci pcm pcp pcs pec pee pei pem pep pes pic pie pii pim pip pis pmc pme pmi pmm pmp pms ppc ppe ppi ppm ppp pps ps- psc pse psi psm psp pss scc sce sci scm scp scs se- sec see sei sem sep ses sic sie sii sim sip sis smc sme smi smm smp sms spc spe spi spm spp sps ss- ssc sse ssi ssm ssp sss