-ic a-a a-c a-i aaa aac aae aai aao aap aas ac- aca acc ace aci aco acp acs aea aec aee aei aeo aep aes ai- aia aic aie aii aio aip ais aoa aoc aoe aoi aoo aop aos ap- apa apc ape api apo app aps as- asa asc ase asi aso asp ass c-- caa cac cae cai cao cap cas cca ccc cce cci cco ccp ccs ce- cea cec cee cei ceo cep ces ci- cia cic cie cii cio cip cis co- coa coc coe coi coo cop cos cpa cpc cpe cpi cpo cpp cps csa csc cse csi cso csp css eaa eac eae eai eao eap eas ec- eca ecc ece eci eco ecs eea eec eee eeo eep ees eia eic eie eii eio eip eis eo- eoa eoc eoe eoi eoo eop eos ep- epa epc epe epi epo epp eps es- esa esc ese esi eso esp ess ia- iaa iac iae iai iao iap ias ica icc ice ici ico icp ics ie- iea iec iee iei iep ies iia iic iie iii iio iip iis io- ioa ioc ioe ioi ioo iop ios ipa ipc ipe ipi ipo ipp ips is- isa isc ise isi iso isp iss o-i oaa oac oae oai oao oap oas oc- oca occ oci oco ocp ocs oea oec oee oei oeo oep oes oia oic oie oii oio oip ois oo- ooa ooc ooi ooo oop oos op- opa opc ope opi opo opp ops os- osa osc ose osi oso osp oss p-p paa pac pae pai pao pap pas pca pcc pce pci pco pcp pcs pea pec pee pei peo pep pes pia pic pie pii pio pip pis poa poc poe poi poo pop pos ppa ppc ppe ppi ppo ppp pps ps- psa psc pse psi pso psp pss saa sac sae sai sao sap sas sca scc sce sci sco scp scs se- sea sec see sei seo sep ses sia sic sie sii sio sip sis soa soc soe soi soo sop sos spa spc spe spi spo spp sps ss- ssa ssc sse ssi sso ssp sss