a-ak aaaa aaac aaal aaas aaca aacc aack aacl aacs aaka aala aalc aall aals aasa aasc aass acaa acac acas acca accc accs acks acla aclc acls acsa acsc acsl acss akaa akal akas akca akka aksa alaa alac alak alal alas alca alcc alcs alk- alka all- alla alll alls alsa alsc asaa asac asak asal asas asc- asca ascc ascl aska asks asla assa assc assk assl asss caaa caac caal caas cac- caca cacc cack caka cala calc calk call cals casa casc cask casl cass ccaa ccac ccas ccca cccc cccl cccs ccla cclc ccls ccsa ccsl ccss ckac ckck ckcl ckcs cksa cksl clas clsa clsc csaa csac csak csas cscc cscl cscs cska csks csla cssa kaaa kaak kaal kaas kacc kacl kacs kaka kakc kakk kaks kala kalc kalk kall kals kas- kasa kasc kask kasl kass kcaa kcac kcal kcas kcca kccc kcck kccl kckc kckk kckl kcla kclc kclk kcll kcls kcsa kcsc kcss kkaa kkac kkal kkck kkcl kkcs kkkk kklc kkll kkls kksa kkss klaa klac klak klal klas klca klcc klck klcl klcs klka klkc klkk klkl klks klla kllc kllk klls klsa klsc ksac ksak ksal ksas ksca ksck kscl kscs kska kskk ksks ksla kslc kslk ksll kssa kssl ksss laaa laac laak laal laas laca lacc lack lacl lacs laka laks lala lall lasa lask lass lcac lcca lccc lccs lcls lcsc lkal llcc llcs llks lllc llll lscs lsla lssa sa-c saac saak saal saas saca sacc sack sacs saka sakk saks sala salc salk sall sals sasa sasc sask sasl sass scaa scac scak scal scas sccc sccl sccs sck- sckl scl- sclc sclk scls scsa scsc scsl skac skal skss slaa slac slak slas slcc slsa slsc ssaa ssac ssas ssca sscc sscs ssla sslc sssa sssc ssss