a-ii aaaa aaac aaai aaap aaca aacc aaci aacp aaic aaii aapa aapc aapi acaa acac acai acap acca accc acci accp aci- acia acic acip acpa acpi aiai aica aicc aicp aiia aiic aipa aipi apac apai apap apca apcc api- apia apic apip appa appc caaa caac caap cac- caca cacc caci caia caic caip capa capc capi capp ccaa ccac ccai ccap ccca cccc ccci cccp ccic ccii ccip ccpa ccpp ciaa cica cicc cici ciia ciii cipa cipp cpaa cpac cpap cpca cpia cpic cppa iaaa iaac iaai iaap iaca iacc iacp iaia iapa iapp icaa icac icai icap icca iccc icci iccp icpa icpc iiac iica iiii iipa ipac ipca ipcc ippa ippc paap paca paci paia paip papa papi papp pcaa pcap pcca pccc pcia pcip pcpp piai picc pici piia piip pipa pipi pipp ppac ppap ppcc ppci ppic pppa pppp