c-cd cccc cccf ccci cccs cccu ccdc ccdf ccdi ccds ccfc ccfd ccff ccfi ccic ccid ccii ccis ccsd ccsf ccsi ccss ccuc ccus cdcs cdfs cdic cdii cdis cdss cfcf cfcs cfds cfsi cicc cici cics cicu cidc cidi cids ciff cifs ciid ciii ciis cis- cisc cisd ciss ciuc cius cscc cscd cscf csci cscs csfc csid csis cssd csuf csus cucc cuci cudi cuds cufc cuff cufi cui- cuif cuis cusd cuss cusu dccc dcci dccs dccu dcds dcfc dcfs dcii dcis dcsc dcss dddd ddss dfcc dfcs dfcu dfds dici didi dids didu dif- diff difs diii diis dis- disc disd disi diss dius dscc dscs dsfc dsif dssc dssi ducs dudd duds dudu dufc duff dufu duid duif duis dusi fccf fcds fcic fcii fcsc fdic ffcc ffff ffii ffss ficc fics fidc fidf fids fifc fiff fifi fiii fisc fisd fisi fiss fisu fscc fsfi fssc fssf fuc- fuci fudd fudi fufc fuff fufu fuid fusc fusd fusi fuss fusu iccc iccf icci iccs iccu icdc icdd icis icsc icsd icsi icss icus idfc idic idid idis idsc idsf idss idus ifcd ific ifid ifis ifsc iicd iiii iiis iisc iisd iisi iisu iiuc iscc iscd isci iscs iscu isdc isds isfc isic isis issc issf issi isss issu isus iucc iuds iuiu iusd iuss s-ic s-ii sccc sccs scdc scdf scds scfc scfi sci- scic scid scif scis scsc scsd scsi scsu scud sdcc sddc sdds sdfc sdic sdif sdsc sdsf sdss sdsu sfcc sfcs sfdc sffc sfss sfsu sicc sici sics sicu sidd sidi sids siff sifu sisc sisd sisi siss sisu siui sius sscc ssci sscs ssdc ssdd ssdf ssfc ssid ssis sssc sssf sssi ssss suc- succ suci sucs sudd sudi suds suf- sufc suff sufi sufs sufu suid suis sus- susd susi suss susu suus ucci ucdc ucdd ucsc ucsd ucsf ucsu uddi udds udic udid udsd ufcu uisd uscc uscf uscs usdc usdf usds usfc usfi usfs usif usis ussc ussf usss ussu usui usus uusi uuuu