a-ii aaaa aaac aaai aaap aaca aacc aaci aaco aacp aaic aaii aaoo aapa aapc aapi aapo acaa acac acai acap acca accc acci acco accp aci- acia acic acip acoa acop acpa acpi aiai aica aicc aicp aiia aiic aioc aioi aipa aipi aoca aopo apac apai apao apap apca apcc apco api- apia apic apio apip apo- apoc apoo apop appa appc caaa caac caap cac- caca cacc caci caco caia caic caio caip caoi capa capc capi capo capp ccaa ccac ccai ccap ccca cccc ccci cccp ccic ccii ccip ccoc ccpa ccpp ciaa ciao cica cicc cici cico ciia ciii cipa cipo cipp coai coca coco cocp coia coip coop copa copi copo copp cpaa cpac cpap cpca cpia cpic cpio cppa iaaa iaac iaai iaap iaca iacc iacp iaia iapa iapp icaa icac icai icao icap icca iccc icci icco iccp icoc icpa icpc icpo iiac iica iiii iiio iioi iioo iiop iipa ioci iocp ioii ioio iooi iooo ipac ipca ipcc ipop ippa ippc ippo oaic oapi ocac ocap occa occc occi ocpa ocpp oici oiii oipc ooaa ooia oooo opap opca opia opic opii opio opo- oppa oppi oppo paap paca paci paco paia paio paip paoc papa papi papp pcaa pcap pcca pccc pcia pcip pcoa pcpp piai piao pica picc pici pico piia piip pipa pipi pipo pipp poca poco poia poio poop pop- popa popc popi popo popp ppac ppap ppcc ppci ppic ppoa pppa pppo pppp