-vac aaaa aaac aaar aaas aaav aaca aacc aacr aacs aacv aara aarc aars aasa aasc aass aava acaa acac acar acas acca accc accs acr- acra acrc acrr acrs acrv acsa acsc acss acvs acvv arac arar aras arc- arca arcs arr- arra arrc arrr arrs ars- arsa arsc arva asaa asac asar asas asc- asca ascc ascr asra asrc asrs assa assc assr asss asva asvs avar avas avcc avra avva caaa caac caas cac- caca cacc cacr cara carc carr cars casa casc casr cass cava cavs ccaa ccac ccar ccas ccca cccc cccs cccv ccra ccrc ccrs ccsa ccss ccvs crac crar cras crca crcc crcr crsa crss csaa csac csar csas csav cscc cscr cscs csra csrc csrs cssa cssr cvac cvar cvas cvca cvcc cvra cvrr cvss raas rac- raca racc racs racv rara rars rasa rasc rass rava rcac rcas rccc rccs rcsa rcsc rcss rcvr rcvs rras rrrr rsaa rscc rscs rssa rv-c rvca sa-c saac saar saas saca sacc sacr sacs sara sarc sarr sars sarv sasa sasc sass sava savs scaa scac scar scas sccc sccs scr- scra scrc scrs scsa scsc scsr sras srcc ssaa ssac ssas ssca sscc sscs ssra ssrc ssrs sssa sssc ssss svar svcc svcs svsc vaar vaas vaca vacs vara varr vars vas- vasa vass vava vavs vcrs vrac vras vrav vrsa vssc vvvv