a-fu aaaa aaac aaaf aaal aaca aacc aacf aacl aacu aafa aafc aaff aafl aala aalc aall aalu acaa acac acca accc accf accu acfc acfl acla aclc aclu acu- acuf acul afaa afca afcc afcu affa affc afla aflc afua alaa alac alal alau alca alcc alfa all- alla alll allu alua aluf auaa auca aufc aul- aula aulf aull aulu caaa caac caaf caal cac- caca cacc cafa cafc caff cafl cafu cala calc calf call calu cauc cauf caul ccaa ccac ccaf ccca cccc cccf cccl cccu ccfa ccfc ccff ccfl ccla cclc ccuc cfaa cfac cfca cfcf cfcl claf clau cuau cuca cucc cufa cufc cuff cula culc cull faaa faac faca facc fafa fafc faff fala falc fall falu faul fcal fcca fccf ffcc ffff flac flcl fluf fuc- fuca fufc fuff fufu fula full fulu laaa laac laal laca lacc lacl lacu lafc laff lala lall lalu lauf laul lcac lcca lccc lcfc lfca lfcc llcc lllc llll luau luca luff lufu lula lull lulu luua uaca uafa uaua ucal ucca ucfa ucla ucua ufcu uffa ulaa ulcc ulla ulua ulul uulu uuuu