-ic a-a a-c a-i aaa aac aae aai aap aas ac- aca acc ace aci acp acs aea aec aee aei aep aes ai- aia aic aie aii aip ais ap- apa apc ape api app aps as- asa asc ase asi asp ass c-- caa cac cae cai cap cas cca ccc cce cci ccp ccs ce- cea cec cee cei cep ces ci- cia cic cie cii cip cis cpa cpc cpe cpi cpp cps csa csc cse csi csp css eaa eac eae eai eap eas ec- eca ecc ece eci ecs eea eec eee eep ees eia eic eie eii eip eis ep- epa epc epe epi epp eps es- esa esc ese esi esp ess ia- iaa iac iae iai iap ias ica icc ice ici icp ics ie- iea iec iee iei iep ies iia iic iie iii iip iis ipa ipc ipe ipi ipp ips is- isa isc ise isi isp iss p-p paa pac pae pai pap pas pca pcc pce pci pcp pcs pea pec pee pei pep pes pia pic pie pii pip pis ppa ppc ppe ppi ppp pps ps- psa psc pse psi psp pss saa sac sae sai sap sas sca scc sce sci scp scs se- sea sec see sei sep ses sia sic sie sii sip sis spa spc spe spi spp sps ss- ssa ssc sse ssi ssp sss