-vac a-ak aaaa aaac aaas aaav aaca aacc aack aacs aacv aaka aasa aasc aass aava acaa acac acas acca accc accs acks acsa acsc acss acvs acvv akaa akas akca akka aksa asaa asac asak asas asc- asca ascc aska asks assa assc assk asss asva asvs avas avcc avva caaa caac caas cac- caca cacc cack caka casa casc cask cass cava cavs ccaa ccac ccas ccca cccc cccs cccv ccsa ccss ccvs ckac ckck ckcs ckcv cksa csaa csac csak csas csav cscc cscs cska csks cssa cvac cvas cvca cvcc cvss kaaa kaak kaas kacc kacs kacv kaka kakc kakk kaks kas- kasa kasc kask kass kava kavs kavv kcaa kcac kcas kcav kcca kccc kcck kccv kckc kckk kckv kcsa kcsc kcss kcvk kcvs kcvv kkaa kkac kkck kkcs kkkk kksa kkss kkvv ksac ksak ksas ksav ksca ksck kscs kscv kska kskk ksks kssa ksss ksva ksvc kvak kvas kvcc kvck kvcs kvcv kvsa kvsc kvss kvsv kvvs kvvv sa-c saac saak saas saca sacc sack sacs saka sakk saks sasa sasc sask sass sava savs scaa scac scak scas sccc sccs sck- scsa scsc skac skss ssaa ssac ssas ssca sscc sscs sssa sssc ssss svcc svcs svsc vaas vaca vack vacs vaka vas- vasa vass vava vavs vssc vvvv