c-cd cccc ccci cccs cccu ccdc ccdi ccdr ccds ccic ccid ccii ccir ccis ccrc ccri ccrs ccrt ccsd ccsi ccss ccst cctc cctt ccuc ccus ccut cd-r cdcs cddr cdic cdii cdis cdrs cdss cicc cici cicr cics cict cicu cidc cidi cidr cids cidt ciid ciii ciis ciit circ ciri cirr cirs cirt cis- cisc cisd cisr ciss cist citi cits citt citu ciuc cius crcc crcr crdc cric cris crit criu crrt crss crst crtc crts crud crus crut cscc cscd csci cscr cscs csdr csid csir csis csit csrc csrd csrs cssd cssr cstc cstd cstr csts csur csus ctic ctrc ctrs ctsc ctss ctsu ctts cucc cuci cudi cuds cui- cuir cuis cuit curd curi curr curs curt cusd cuss cust cusu cut- cutc cuts cutt dccc dcci dccs dcct dccu dcds dcii dcis dcsc dcss dctc dcts dddd ddrc ddss ddts dici dict didi dids didu diii diis dird dirr dirs dirt dis- disc disd disi diss dist diti dits ditt dius dric drit drrs drui drus drut druu dscc dscr dscs dsdr dsrc dsri dsrr dssc dssi dsst dstc dsts dtcc dtss ducs duct dudd duds dudu duid duir duis duit duri durt duru dusi dust duts duur duut iccc icci iccr iccs icct iccu icdc icdd icis icrc icrr icrs icrt icru icsc icsd icsi icsr icss icst icts icus idcr idic idid idir idis idrc idsc idss idts idus iicd iiii iiis iiit iirc iirs iisc iisd iisi iisr iist iisu iitr iitt iiuc ircc ircd ircs ircu irdc irds iri- iric irid iris irrc irri irrs irti irts irus iscc iscd isci iscr iscs isct iscu isdc isds isic isis isit isri issc issi issr isss issu istc istd isti istr ists isus itcs itic itis itri itrs itsi itsu itur iucc iuds iuiu iusd iuss iust rccc rccs rcdc rcds rcic rcid rcis rcrd rcsc rcsd rcsi rcss rctc rcti rcts ricc rics rict ridc ridd ridi rids riis riri rirs risc risd risi riss rist risu riti rits ritt ritu rius rrrr rscc rscs rsdd rsds rsid rsis rsts rstu rtcc rtdt rtss rtts ruci ruct rudd rudi ruds ruid ruis ruit rurc rurd ruri rurs ruru rusi russ rust rusu ruti ruts rutt rutu ruud s-ic s-ii sccc sccs scct scdc scds sci- scic scid scir scis scit scr- scrc scri scrs scsc scsd scsi scsr scst scsu sctc sctd sctr scts scud scur scut sdcc sddc sdds sdic sdrc sdrs sdsc sdss sdsu sicc sici sics sicu sidd sidi sidr sids siit sirc siri sirr sirs sirt siru sisc sisd sisi siss sist sisu sit- sitc sitd siti sits sitt situ siui sius siut srcc srct sris srsd srtr sscc ssci sscs ssdc ssdd ssid ssis ssit ssrc ssri ssrs sssc sssi ssss sstc sstd ssts stcc stcs stcu stds stic stid stir stis stit strc strd stri strs stru stsi stss sttc sttd sttr stuc stud stur stus stut suc- succ suci sucr sucs sudd sudi suds suid suir suis suit sur- surc surd suri surr surs surt suru sus- susd susi suss sust susu suti sutu suus tccc tccu tcdd tctc tcts tdis tdri tdss ticc tics tidc tidd tids tiit tiiu tird tiri tirr tirs tiru tisi tiss tist titc titi tits titt titu trcc tri- tric tris trit trsd trsi trst trtc trtr truc trud trus trut truu tscc tsid tsis tssi tssr tsst tstc tsts tsui ttss tttt tucc tudi tudu tuis tuit tuiu turc turd turi turr turs turt turu tusc tusd tusi tuss tust tuti tuts tutt tutu ucci ucdc ucdd ucrc ucsc ucsd ucst ucsu ucut uddi udds udic udid udir udsd udts uirr uisd uist uits urci urds urdu uric uris uriu urri ursi urss ursu urts urur urus urut uscc uscs usdc usds usdt usis ussc ussr usss usst ussu ustc usti usts usui usus utid utis utri utsc utti uttu uuri uusi uuuu