a-ha aaaa aaac aaah aaas aaca aacc aach aaco aacs aaha aahs aaoo aasa aasc aass acaa acac acas acca accc acch acco accs acha achh acho achs acoa acoh acos acsa acsc acss ahac ahah ahas ahha ahhs ahoa ahsa ahso ahss aoah aoca aocs aoss asaa asac asah asao asas asc- asca ascc asch asco asha ashs asoc asos assa assc assh asso asss caaa caac caah caas cac- caca cacc cach caco caha cahs caos casa casc cash caso cass ccaa ccac ccas ccca cccc cccs ccha cchs ccoc ccsa ccss chaa chac chah chao chas chca chch chcs chha chhs choc choh choo chos chsc chsh coas coca coch coco coha coho cohs cooh coos cosa cosc cosh coso coss csaa csac csao csas cscc csch csco cscs cshs csos cssa haas haco hacs haha haho hahs hasa hasc hash hass hcca hccc hcch hccs hchs hcsa hcsc hcso hcss hhaa hhhh hhhs hoac hoas hoca hoch hocs hoha hoho hoos hosa hosh hoss hsac hsas hscc hshs oahs oasc oass ocac ocas occa occc ocha ochs ocos ocsa ohcc ohho ohhs ohoh ohos ohso ohss ooaa ooha ooho oohs oooh oooo ooos oosa osas osca oscc osco osha oshc osho oshs osoo osos ossa osso s-os sa-c saac saah saas saca sacc saco sacs saha saho sahs saos sasa sasc sash saso sass scaa scac scas sccc sccs sch- scha schh scho schs scoh scoo scsa scsc scsh scso shac shah shao shas shca shcc shha shhh shhs shoa shoo shos shsc soas soca soch soco socs soha sohh soho sohs soos sosa sosh soso soss ssaa ssac ssao ssas ssca sscc sscs sshs ssoc sssa sssc sssh ssss