-ana aaaa aaac aaan aaas aaca aacc aacn aacs aana aasa aasc aass acaa acac acan acas acca accc accs acsa acsc acss ana- anaa anac anan anas anca ancc anna anns ansa asaa asac asan asas asc- asca ascc asnc assa assc assn asss caaa caac caan caas cac- caca cacc cana canc cann cans casa casc cass ccaa ccac ccas ccca cccc cccs ccna ccnc ccns ccsa ccsn ccss cnaa cnac cnas cnna cnsa cnss csaa csac csas cscc cscs cssa naaa naac naan naas naca nacc nacs nan- nana nann nans nas- nasa nasc nass ncaa ncac ncca nccc nccn nccs ncna ncnc ncsa ncsc ncss nnnn nnsa nnss nsaa nsac nsca nscc nscs nsna nssa nssc nsss sa-c saac saan saas saca sacc sacn sacs sana sann sans sasa sasc sass scaa scac scas sccc sccs scna scsa scsc scsn snas snca sncc snns ssaa ssac ssan ssas ssca sscc sscs ssns sssa sssc ssss