a-ii aaaa aaac aaad aaaf aaai aaas aaca aacc aacd aacf aaci aacs aada aadc aadi aads aafa aafc aafd aaff aafi aaic aaii aais aasa aasc aasd aasf aasi aass acaa acac acad acai acas acca accc accd accf acci accs acda acdc acdf acdi acds acfc acfd acfi acfs aci- acia acic acid acif acis acsa acsc acsd acsi acss adaa adac adad adai adas adcc adci adcs adda addc addd addi adds adfa adfc adfs adia adic adif adis adsa adsi adss afaa afad afca afcc afci afcs afdc affa affc affi affs afia afid afif afis afsa afsc aiai aias aica aicc aicd aicf aics aida aidc aidi aids aifd aiff aifs aiia aiic aiid aisa aisd aisi asaa asac asad asaf asai asas asc- asca ascc asci asda asdf asds asfa asfi asia asic asif asii asis assa assc assd assi asss c-cd caaa caac caaf caas cac- caca cacc caci cada cadc cadd cadi cads cafa cafc caff cafs caia caic caid cais casa casc casd casi cass ccaa ccac ccad ccaf ccai ccas ccca cccc cccf ccci cccs ccdc ccdf ccdi ccds ccfa ccfc ccfd ccff ccfi ccic ccid ccii ccis ccsa ccsd ccsf ccsi ccss cdaa cdac cdad cdai cdcs cdda cdfa cdfs cdic cdii cdis cdss cfaa cfac cfca cfcf cfcs cfda cfds cfia cfsa cfsi ciaa cias cica cicc cici cics cida cidc cidi cids cifa ciff cifs ciia ciid ciii ciis cis- cisa cisc cisd ciss csaa csac csas cscc cscd cscf csci cscs csda csfc csia csid csis cssa cssd daad daas daca daci dacs dada dadi dads dafa dafc daff dafi dafs daia daid dais dasa dasc dasd dasi dass dcas dcca dccc dcci dccs dcds dcfc dcfs dcia dcii dcis dcsc dcss dddd ddss dfaf dfas dfcc dfcs dfds dffa dia- diac diad diaf dias dica dici dida didi dids dif- difa diff difs diii diis dis- disa disc disd disi diss dsac dscc dscs dsda dsfa dsfc dsif dssa dssc dssi faaa faac faad faas faca facc facs fada fadd fadi fads fafa fafc faff fafi faid fais fasa fasc fasd fasi fass fcas fcca fccf fcda fcds fcic fcii fcsc fdca fdic ffcc ffff ffii ffsa ffss fiaa fiac fiad fiaf fias fica ficc fics fida fidc fidf fids fifa fifc fiff fifi fiii fisa fisc fisd fisi fiss fsai fsas fscc fsfi fsia fssa fssc fssf iaaa iaac iaai iaas iaca iacc iacs iadc iafc iaff iaia iais iasa iasc iasi icaa icac icad icaf icai icas icca iccc iccf icci iccs icdc icdd icis icsa icsc icsd icsi icss idad idas idca idda idfa idfc idia idic idid idis idsa idsc idsf idss ifaa ifac ifas ifcd ifda ific ifid ifis ifsa ifsc iiac iias iica iicd iida iifa iiii iiis iisc iisd iisi is-a isac isad isaf isai isas isca iscc iscd isci iscs isda isdc isds isfa isfc isia isic isis issa issc issf issi isss s-ic s-ii sa-c saac saad saaf saas saca sacc sacd saci sacs sada sadc sadd sadi sads safa safc saff safi saia saic said saif sais sasa sasc sasd sasf sasi sass scaa scac scad scaf scai scas sccc sccs scda scdc scdf scds scfa scfc scfi sci- scia scic scid scif scis scsa scsc scsd scsi sdcc sddc sdds sdfc sdic sdif sdsc sdsf sdss sfas sfca sfcc sfcs sfdc sffc sfia sfss siaa siac siaf siai sias sica sicc sici sics sida sidd sidi sids sifa siff sisa sisc sisd sisi siss ssaa ssac ssas ssca sscc ssci sscs ssdc ssdd ssdf ssfc ssid ssis sssa sssc sssf sssi ssss