-ana aaaa aaac aaaf aaal aaan aaca aacc aacf aacl aacn aafa aafc aaff aafl aala aalc aall aana acaa acac acan acca accc accf acfc acfl acla aclc afaa afan afca afcc affa affc afla aflc alaa alac alal alan alca alcc alfa all- alla alll alln alna ana- anaa anac anal anan anca ancc anfa anla anlc anln anna caaa caac caaf caal caan cac- caca cacc cafa cafc caff cafl cala calc calf call cana canc cann ccaa ccac ccaf ccca cccc cccf cccl ccfa ccfc ccff ccfl ccla cclc ccna ccnc ccnf cfaa cfac cfca cfcf cfcl cfcn cfln claf clan cnaa cnac cnfa cnna faaa faac faan faca facc fafa fafc faff fala falc fall faln fana fanc fcal fcca fccf fcnl ffcc ffff flac flan flcl flna flnc fnac fnlc laaa laac laal laan laca lacc lacl lafc laff lala lall lan- lana lanc lann lcac lcca lccc lcfc lfca lfcc llan llcc lllc llll naaa naac naal naan naca nacc nacf nacl nafa nafc naff nafl nala nalc nall nan- nana nann ncaa ncac ncca nccc nccf nccn ncfc nclc ncln ncna ncnc nfaa nfff nlcc nlcf nnnn