a-ak aaaa aaac aaas aaca aacc aack aacs aaka aasa aasc aass acaa acac acag acas acca accc accs acga acgs acks acsa acsc acss agac agag agas agca agcc agga agsa agsg akaa akas akca akka aksa asaa asac asag asak asas asc- asca ascc aska asks assa assc assk asss caaa caac caas cac- caca cacc cack caga cagg cags caka casa casc cask cass ccaa ccac ccag ccas ccca cccc cccs ccga ccgc ccgs ccsa ccsg ccss cgac cgas cgcc cgcg cggs cgss ckac ckck ckcs ckga cksa csaa csac csak csas cscc cscs cska csks cssa gaas gack gaga gagg gags gasa gasc gask gass gc-c gcaa gccc gccs gcss gggg ggss kaaa kaag kaak kaas kacc kacs kag- kaga kagc kagg kags kaka kakc kakk kaks kas- kasa kasc kask kass kcaa kcac kcas kcca kccc kcck kcgc kcgs kckc kckk kcsa kcsc kcsg kcss kgac kgak kgas kgcc kgga kggg kgks kkaa kkac kkag kkck kkcs kkkk kksa kkss ksac ksak ksas ksca ksck kscs ksgc ksgg kska kskg kskk ksks kssa ksss sa-c saac saag saak saas saca sacc sack sacs saga sagg sags saka sakk saks sasa sasc sask sass scaa scac scag scak scas sccc sccs scgs sck- scsa scsc sgaa sgac sgca sgcg sggg sggs sgss skac skag skss ssaa ssac ssas ssca sscc sscs ssgs sssa sssc ssss