c-cd cccc ccci cccs cccu ccdc ccdi ccds ccic ccid ccii ccis ccsd ccsi ccss ccst cctc cctt ccuc ccus ccut cdcs cdic cdii cdis cdss cicc cici cics cict cicu cidc cidi cids cidt ciid ciii ciis ciit cis- cisc cisd ciss cist citi cits citt citu ciuc cius cscc cscd csci cscs csid csis csit cssd cstc cstd csts csus ctic ctsc ctss ctsu ctts cucc cuci cudi cuds cui- cuis cuit cusd cuss cust cusu cut- cutc cuts cutt dccc dcci dccs dcct dccu dcds dcii dcis dcsc dcss dctc dcts dddd ddss ddts dici dict didi dids didu diii diis dis- disc disd disi diss dist diti dits ditt dius dscc dscs dssc dssi dsst dstc dsts dtcc dtss ducs duct dudd duds dudu duid duis duit dusi dust duts duut iccc icci iccs icct iccu icdc icdd icis icsc icsd icsi icss icst icts icus idic idid idis idsc idss idts idus iicd iiii iiis iiit iisc iisd iisi iist iisu iitt iiuc iscc iscd isci iscs isct iscu isdc isds isic isis isit issc issi isss issu istc istd isti ists isus itcs itic itis itsi itsu iucc iuds iuiu iusd iuss iust s-ic s-ii sccc sccs scct scdc scds sci- scic scid scis scit scsc scsd scsi scst scsu sctc sctd scts scud scut sdcc sddc sdds sdic sdsc sdss sdsu sicc sici sics sicu sidd sidi sids siit sisc sisd sisi siss sist sisu sit- sitc sitd siti sits sitt situ siui sius siut sscc ssci sscs ssdc ssdd ssid ssis ssit sssc sssi ssss sstc sstd ssts stcc stcs stcu stds stic stid stis stit stsi stss sttc sttd stuc stud stus stut suc- succ suci sucs sudd sudi suds suid suis suit sus- susd susi suss sust susu suti sutu suus tccc tccu tcdd tctc tcts tdis tdss ticc tics tidc tidd tids tiit tiiu tisi tiss tist titc titi tits titt titu tscc tsid tsis tssi tsst tstc tsts tsui ttss tttt tucc tudi tudu tuis tuit tuiu tusc tusd tusi tuss tust tuti tuts tutt tutu ucci ucdc ucdd ucsc ucsd ucst ucsu ucut uddi udds udic udid udsd udts uisd uist uits uscc uscs usdc usds usdt usis ussc usss usst ussu ustc usti usts usui usus utid utis utsc utti uttu uusi uuuu