-ic a-a a-c a-i aaa aac aai aap aar ac- aca acc aci acp acr ai- aia aic aii aip air ap- apa apc api app apr ar- ara arc ari arp arr c-- caa cac cai cap car cca ccc cci ccp ccr ci- cia cic cii cip cir cpa cpc cpi cpp cpr cra crc cri crp crr ia- iaa iac iai iap iar ica icc ici icp icr iia iic iii iip iir ipa ipc ipi ipp ipr ir- ira irc iri irp irr p-p paa pac pai pap par pca pcc pci pcp pcr pia pic pii pip pir ppa ppc ppi ppp ppr pra prc pri prp prr ra- raa rac rai rap rar rca rcc rci rcp rcr ria ric rii rip rir rpa rpc rpi rpp rpr rra rrc rri rrp rrr