a-fu a-ii aaaa aaac aaaf aaai aaas aaca aacc aacf aaci aacs aacu aafa aafc aaff aafi aaic aaii aais aasa aasc aasf aasi aass aasu aaus acaa acac acai acas acca accc accf acci accs accu acfc acfi acfs aci- acia acic acif acis acsa acsc acsi acss acu- acuf acus afaa afca afcc afci afcs afcu affa affc affi affs afia afif afis afsa afsc afua afus aiai aias aica aicc aicf aics aiff aifs aiia aiic aisa aisi aiui asaa asac asaf asai asas asau asc- asca ascc asci asfa asfi asia asic asif asii asis assa assc assi asss assu asui asus auaa auca auci aufc aufi aufs auis ausa ausu caaa caac caaf caas cac- caca cacc caci cafa cafc caff cafs cafu caia caic cais caiu casa casc casi cass casu cauc cauf caus ccaa ccac ccaf ccai ccas ccca cccc cccf ccci cccs cccu ccfa ccfc ccff ccfi ccic ccii ccis ccsa ccsf ccsi ccss ccuc ccus cfaa cfac cfca cfcf cfcs cfia cfsa cfsi ciaa cias ciau cica cicc cici cics cicu cifa ciff cifs ciia ciii ciis cis- cisa cisc ciss ciuc cius csaa csac csas cscc cscf csci cscs csfc csia csis cssa csua csuf csus cuau cuca cucc cuci cufa cufc cuff cufi cui- cuif cuis cusa cuss cusu faaa faac faas faca facc facs fafa fafc faff fafi fais fasa fasc fasi fass fcas fcca fccf fcic fcii fcsc ffcc ffff ffii ffsa ffss fiaa fiac fiaf fias fica ficc fics fifa fifc fiff fifi fiii fisa fisc fisi fiss fisu fiua fsai fsas fscc fsfi fsia fssa fssc fssf fuc- fuca fuci fufc fuff fufu fusa fusc fusi fuss fusu iaaa iaac iaai iaas iaca iacc iacs iacu iafc iaff iaia iais iasa iasc iasi icaa icac icaf icai icas icca iccc iccf icci iccs iccu icis icsa icsc icsi icss icus ifaa ifac ifas ific ifis ifsa ifsc iiac iias iica iifa iiii iiis iisc iisi iisu iiuc is-a isac isaf isai isas isca iscc isci iscs iscu isfa isfc isia isic isis issa issc issf issi isss issu isua isus iucc iuiu iuss s-ic s-ii sa-c saac saaf saas saca sacc saci sacs sacu safa safc saff safi safu saia saic saif sais sasa sasc sasf sasi sass saua sauc sauf saus scaa scac scaf scai scas sccc sccs scfa scfc scfi sci- scia scic scif scis scsa scsc scsi scsu scua sfas sfca sfcc sfcs sffc sfia sfss sfsu siaa siac siaf siai sias siau sica sicc sici sics sicu sifa siff sifu sisa sisc sisi siss sisu siui sius ssaa ssac ssas ssau ssca sscc ssci sscs ssfc ssis sssa sssc sssf sssi ssss suas suc- succ suci sucs suf- sufa sufc suff sufi sufs sufu suis sus- susa susi suss susu suus uaca uafa uasa uaua ucai ucas ucca ucci ucfa ucsa ucsc ucsf ucsu ucua ufcu uffa uica us-a usaa usac usaf usas usca uscc uscf uscs usfa usfc usfi usfs usia usif usis ussa ussc ussf usss ussu usua usui usus uusi uuuu