a-ii aaaa aaac aaae aaaf aaai aaca aacc aace aacf aaci aaco aaea aaec aafa aafc aaff aafi aaic aaii aaoe aaoo acaa acac acae acai acca accc acce accf acci acco ace- acea acec acfc acfe acfi aci- acia acic acie acif acoa acoe aeac aeaf aeci aeio afaa afao afca afcc afci afee affa affc affi affo afia afif afoa afoe afoo aiai aica aicc aice aicf aiea aiee aiff aiia aiic aioc aioi aoca aoce caaa caac caaf cac- caca cacc cace caci caco caec caei cafa cafc cafe caff caia caic caio caoi ccaa ccac ccaf ccai ccca cccc cccf ccci ccee ccfa ccfc ccff ccfi ccic ccii ccoc ceac cec- ceca cece ceci ceco ceec cef- cefa cefc cfaa cfac cfae cfao cfca cfcf cfco cfia cfoa ciaa ciao cica cicc cici cico ciee cifa cife ciff ciia ciii coai coca coce coco cofc cofe coff cofi coia coif coof eaaf eaca eacc eaec eaif ecaa ecac ecai ecao ecca eccc ecce ecci ecco ecef ecfa ecfc eco- eeca eeea eeee eefa eefe eeoc efca efco efeo effa effi efic eiao eica eico eiec eiei faaa faac faca facc face fafa fafc fafe faff fafi fafo faie faio fcca fccf fcic fcii feaf fece fefc fefe feff fefi fefo feia feie feio feof ffcc ffee ffff ffii fiaa fiac fiaf fica ficc fice fico fiec fief fifa fifc fife fiff fifi fifo fiii fioe foaf foca foce foci foco fofo foia foie foof iaaa iaac iaai iaca iacc iaea iaec iafc iafe iaff iaia icaa icac icaf icai icao icca iccc iccf icci icco icea icec icee icef icoc ieac iecc ieie ieio ifaa ifac ifae ifao ifco ific iiac iica iifa iiie iiii iiio iioi iioo ioci ioee iofc ioii ioio ioof iooi iooo o-eo oafc oafo oaic ocac occa occc occi oce ocee ocef ocfa oec- oeca oecc oeec off- offa offc offe offo oici oiii ooaa ooff ooia oooo