a-ii aaaa aaac aaai aaas aaca aacc aaci aacs aaic aaii aais aasa aasc aasi aass acaa acac acag acai acas acca accc acci accs acga acgi acgs aci- acia acic acis acsa acsc acsi acss agac agag agai agas agca agcc agga aggi agia agic agig agii agis agsa agsg aiai aias aica aicc aics aiga aiia aiic aisa aisg aisi asaa asac asag asai asas asc- asca ascc asci asia asic asii asis assa assc assi asss caaa caac caas cac- caca cacc caci caga cagg cagi cags caia caic cais casa casc casi cass ccaa ccac ccag ccai ccas ccca cccc ccci cccs ccga ccgc ccgs ccic ccii ccis ccsa ccsg ccsi ccss cgac cgas cgcc cgcg cggs cgis cgss ciaa cias cica cicc cici cics ciga cigi cigs ciia ciii ciis cis- cisa cisc ciss csaa csac csas cscc csci cscs csia csis cssa gaas gaga gagg gagi gags gaia gaig gais gasa gasc gasi gass gc-c gcaa gccc gccs gcic gcii gcss gggg ggss giaa giac giai gias gica giga gigg gigi gigs giis gisa giss gsis iaaa iaac iaai iaas iaca iacc iacs iags iaia iais iasa iasc iasi icaa icac icag icai icas icca iccc icci iccs icga icgc icis icsa icsc icsi icss igac igas igcc igga iggs igia igis iiac iias iica iiii iiis iisc iisi is-a isac isai isas isca iscc isci iscs isgc isia isic isis issa issc issi isss s-ic s-ii sa-c saac saag saas saca sacc saci sacs saga sagg sagi sags saia saic sais sasa sasc sasi sass scaa scac scag scai scas sccc sccs scgs sci- scia scic scis scsa scsc scsi sgaa sgac sgca sgcg sggg sggs sgic sgss siaa siac siag siai sias sica sicc sici sics siga sigg sigi sigs sisa sisc sisi siss ssaa ssac ssas ssca sscc ssci sscs ssgs ssis sssa sssc sssi ssss