-vac a-ak aaaa aaac aaar aaas aaav aaca aacc aack aacr aacs aacv aaka aara aarc aars aasa aasc aass aava acaa acac acar acas acca accc accs acks acr- acra acrc acrr acrs acrv acsa acsc acss acvs acvv akaa akar akas akca akka akr- akra aksa arac arak arar aras arc- arca arcs arka arks arr- arra arrc arrk arrr arrs ars- arsa arsc arsk arva asaa asac asak asar asas asc- asca ascc ascr aska askr asks asra asrc asrs assa assc assk assr asss asva asvs avar avas avcc avra avva caaa caac caas cac- caca cacc cack cacr caka cara carc cark carr cars casa casc cask casr cass cava cavs ccaa ccac ccar ccas ccca cccc cccs cccv ccra ccrc ccrs ccsa ccss ccvs ckac ckck ckcs ckcv ckrc cksa crac crar cras crca crcc crcr crkc crsa crss csaa csac csak csar csas csav cscc cscr cscs cska csks csra csrc csrs cssa cssr cvac cvar cvas cvca cvcc cvra cvrr cvss kaaa kaak kaar kaas kacc kacs kacv kaka kakc kakk kaks kara kark karr kars karv kas- kasa kasc kask kasr kass kava kavs kavv kcaa kcac kcar kcas kcav kcca kccc kcck kccr kccv kckc kckk kckr kckv kcrc kcrr kcrs kcrv kcsa kcsc kcsr kcss kcvk kcvr kcvs kcvv kkaa kkac kkar kkck kkcr kkcs kkkk kkrc kkrk kkrr kkrs kkrv kksa kksr kkss kkvr kkvv krac krak krar kras krav krca krcc krcs krka krkc krkk krkr krks krkv krrc krrk krrr krrs krsa krsc krsk krsr krss krsv krva krvc krvk krvr krvs krvv ksac ksak ksar ksas ksav ksca ksck kscr kscs kscv kska kskk kskr ksks ksra ksrr ksrs ksrv kssa kssr ksss ksva ksvc ksvr kvak kvar kvas kvcc kvck kvcr kvcs kvcv kvra kvrc kvrr kvrv kvsa kvsc kvsr kvss kvsv kvvr kvvs kvvv raak raas rac- raca racc rack racs racv raka rakk rara rark rars rasa rasc rask rass rava rcac rcas rccc rccs rcsa rcsc rcss rcvr rcvs rkss rksv rras rrrr rsaa rscc rscs rssa rv-c rvca sa-c saac saak saar saas saca sacc sack sacr sacs saka sakk saks sara sarc sark sarr sars sarv sasa sasc sask sass sava savs scaa scac scak scar scas sccc sccs sck- scr- scra scrc scrs scsa scsc scsr skac skar skra skss sras srcc ssaa ssac ssas ssca sscc sscs ssra ssrc ssrs sssa sssc ssss svar svcc svcs svsc vaar vaas vaca vack vacs vaka vara vark varr vars vas- vasa vass vava vavs vcrs vrac vrak vras vrav vrsa vssc vvvv