a-ha a-ii aaaa aaac aaaf aaah aaai aaca aacc aacf aach aaci aaco aafa aafc aaff aafi aaha aaic aaii aaoo acaa acac acai acca accc accf acch acci acco acfc acfi acha achh achi acho aci- acia acic acif acoa acoh afaa afao afca afcc afch afci affa affc affi affo afia afif afoa afoo ahac ahah ahai ahfa ahha ahio ahoa aiai aica aicc aicf aich aiff aiha aiho aiia aiic aioc aioi aoah aoca caaa caac caaf caah cac- caca cacc cach caci caco cafa cafc caff caha caia caic caio caoi ccaa ccac ccaf ccai ccca cccc cccf ccci ccfa ccfc ccff ccfi ccha ccic ccii ccoc cfaa cfac cfao cfca cfcf cfco cfia cfoa chaa chac chaf chah chai chao chca chch chci chfa chfc chfi chha chia chic chif chih choc choh choi choo ciaa ciao cica cicc cich cici cico cifa ciff ciia ciii coai coca coch coco cofc coff cofi coha coho coia coif coof cooh faaa faac faah faca facc fach fafa fafc faff fafi fafo faha faio fcca fccf fcch fcic fcii ffcc ffff ffii fhci fiaa fiac fiaf fica ficc fich fico fifa fifc fiff fifi fifo fiii foaf foca foch foci foco fofo foia foof h-ii haaf haco haff haha haho haif hcca hccc hcch hcfa hcfc hchi hhaa hhhh hhof hi-c hiaa hicc hich hico hifa hiff hifh hifi hifo hihc hihi hiho hioc hoac hoai hoca hoch hoff hoha hoho hoif hoof iaaa iaac iaai iaca iacc iafc iaff iahc iaia icaa icac icaf icai icao icca iccc iccf icci icco ichc ichi icho icoc ifaa ifac ifao ifco ific ihcc iiac iica iifa iiii iiio iioi iioo ioci iofc ioii ioio ioof iooi iooo oafc oafo oaic ocac occa occc occi ocfa ocha ochi ofah off- offa offc offh offo ohai ohcc ohhi ohho ohia ohif ohio ohoh oici oiii ooaa ooff ooha ooho ooia oooh oooo