a-ha aaaa aaac aaaf aaah aaas aaca aacc aacf aach aacs aafa aafc aaff aaha aahs aasa aasc aasf aass acaa acac acas acca accc accf acch accs acfc acfs acha achh achs acsa acsc acss afaa afca afcc afch afcs affa affc affs afhs afsa afsc ahac ahah ahas ahfa ahha ahhs ahsa ahss asaa asac asaf asah asas asc- asca ascc asch asfa asha ashs assa assc assh asss caaa caac caaf caah caas cac- caca cacc cach cafa cafc caff cafs caha cahs casa casc cash cass ccaa ccac ccaf ccas ccca cccc cccf cccs ccfa ccfc ccff ccha cchs ccsa ccsf ccss cfaa cfac cfca cfcf cfcs cfhs cfsa chaa chac chaf chah chas chca chch chcs chfa chfc chfs chha chhs chsc chsh csaa csac csas cscc cscf csch cscs csfc cshs cssa faaa faac faah faas faca facc fach facs fafa fafc faff faha fahs fasa fasc fash fass fcas fcca fccf fcch fchs fcsc ffcc ffff ffhs ffsa ffss fhas fhfs fhhs fhss fsas fscc fshs fssa fssc fssf haaf haas hacs haff hafs haha hahs hasa hasc hash hass hcca hccc hcch hccs hcfa hcfc hchs hcsa hcsc hcss hfcs hfhs hfss hhaa hhhh hhhs hsac hsas hscc hsfc hsfs hshs sa-c saac saaf saah saas saca sacc sacs safa safc saff saha sahs sasa sasc sasf sash sass scaa scac scaf scas sccc sccs scfa scfc sch- scha schh schs scsa scsc scsh sfas sfca sfcc sfcs sffc sfha sfhs sfss shac shah shas shca shcc shha shhh shhs shsc ssaa ssac ssas ssca sscc sscs ssfc sshs sssa sssc sssf sssh ssss