a-ha aaaa aaab aaac aaah aaal aaas aaba aabb aabc aabh aabl aaca aacb aacc aach aacl aacs aaha aahl aahs aala aalc aall aals aasa aasc aass abaa abab abac abal abas abb- abba abbb abbs abca abcb abcc abch abcl abcs abha abhs abla abls abs- absa absl abss acaa acab acac acas acba acbl acca accc acch accs acha achh achl achs acla aclc acls acsa acsc acsl acss ahab ahac ahah ahal ahas ahha ahhs ahla ahsa ahss alaa alac alal alas alb- alba albc albs alca alcc alcs alha alhs all- alla allh alll alls alsa alsc asaa asab asac asah asal asas asba asc- asca ascb ascc asch ascl asha ashs asla assa assc assh assl asss baaa baah baal baas baba babb babs bac- baca bacc bach bacs baha bahl bahs bala balc ball bals basa basc bash bass bbas bbbb bbbs bbch bbhs bblb bbls bcaa bcas bcbc bcbs bcca bccc bccl bccs bchs bcsa bcsc bcsl bcss bhca bhcc bhhs blaa blab blac blah blas blhs blls blss bsaa bsac bsas bscs bshs bslc bssc caaa caab caac caah caal caas caba cabs cac- caca cacc cach caha cahl cahs cala calc call cals casa casb casc cash casl cass cbac cbal cbbc cbbs cbca cbcc cbcl cbcs cbha cbhl cbhs cblb cblc cbsa cbsc ccaa ccab ccac ccas ccba ccbc ccca cccb cccc cccl cccs ccha cchl cchs ccla cclc ccls ccsa ccsl ccss chaa chab chac chah chal chas chca chch chcs chha chhs chlc chsc chsh clab clas clhs clsa clsc csaa csab csac csas cscb cscc csch cscl cscs cshl cshs csla cssa haab haal haas haba habs hacs haha hahs hal- hala halb hall hals hasa hasc hash hass hbbs hbhs hbss hcbc hcbs hcca hccb hccc hcch hccs hchs hcsa hcsc hcss hhaa hhcl hhhh hhhs hhla hlah hlas hlhs hlss hsac hsas hsbc hscc hshs hsls laaa laac laal laas laba labs laca lacc lach lacl lacs laha lahs lala lall lasa lash lass lbcc lbhs lbsc lcac lcbc lcca lccc lccs lchc lchs lcls lcsc lhas lhbs lhhh lhhs lhsa lhss llbs llcc llcs llhs lllc llll lscb lscs lshs lsla lssa sa-c saab saac saah saal saas saba sabb sabc sabs saca sacc sacs saha sahl sahs sala salc salh sall sals sasa sasc sash sasl sass sbaa sbac sbas sbbs sbca sbcc sbcs sbhc sbhs sbsa scaa scab scac scal scas scba sccc sccl sccs sch- scha schh schl schs scl- sclc scls scsa scsc scsh scsl shab shac shah shal shas shbs shca shcc shha shhh shhs shl- shls shsc slaa slab slac slas slcc slhs slsa slsc ssaa ssab ssac ssas ssca sscc sscs sshl sshs ssla sslc sssa sssb sssc sssh ssss