a-fu a-ha aaaa aaac aaaf aaah aaca aacc aacf aach aacu aafa aafc aaff aaha acaa acac acca accc accf acch accu acfc acha achh achu acu- acuf afaa afca afcc afch afcu affa affc afua ahac ahah ahau ahfa ahha ahua auaa auca auch aufc caaa caac caaf caah cac- caca cacc cach cafa cafc caff cafu caha cauc cauf ccaa ccac ccaf ccca cccc cccf cccu ccfa ccfc ccff ccha ccuc cfaa cfac cfca cfcf chaa chac chaf chah chau chca chch chfa chfc chha chua cuau cuca cucc cufa cufc cuff faaa faac faah faca facc fach fafa fafc faff faha fcca fccf fcch ffcc ffff fuc- fuca fufc fuff fufu haaf haff haha hau- hauf hcca hccc hcch hcfa hcfc hhaa hhhh huac huah huch hucu hufc huff hufu huhu uaca uafa uaua ucca ucfa ucha ucua ufcu uffa uhuh uuuu