c-cd cccc ccci cccp cccs ccdc ccdi ccdp ccdr ccds ccic ccid ccii ccip ccir ccis ccoc ccod ccpp ccpr ccps ccrc ccri ccrp ccrs ccrt ccsd ccsi ccsp ccss ccst cctc cctt cd-r cdcs cddr cdic cdii cdio cdis cdos cdot cdps cdrs cdss cicc cici cico cicr cics cict cidc cidi cidp cidr cids cidt ciid ciii ciis ciit cior cios cipo cipp cips circ ciri ciro cirr cirs cirt cis- cisc cisd cisp cisr ciss cist citi cito citp cits citt coco cocp coct codd codi cods coip coir cois coit cood coop coos coot copd copi copo copp copr cops copt cor- corc cord cori coro corp corr cors cort cosc cosi coso cosp coss cost cotc coti coto cots cott cpcs cpic cpio cpos cppd cpps cpri cprs cprt cpsc cpso cpsr cptp cptr cpts crcc crcr crdc cric crip cris crit croc crod croo crop cror crot crpc crps crrt crsp crss crst crtc crtp crts cscc cscd csci csco cscr cscs csdp csdr csid csio csir csis csit csor csos csot cspc cspd cspi csps cspt csrc csrd csrs cssd cssr cstc cstd csto cstr csts ctcp ctic ctor ctos ctot ctpo ctpp ctps ctrc ctrp ctrs ctsc ctss ctts dccc dcci dccp dccs dcct dcds dcii dcio dcis dcop dcos dcpo dcps dcsc dcss dctc dcts dddd ddoc ddot ddpo ddps ddrc ddss ddts dici dico dict didi dido dids diii diis dioc diop dior dios diot dipc dipo dipp dips dipt dird dirr dirs dirt dis- disc disd disi diso disp diss dist diti dito dits ditt doci doco docs doct dod- dodd dodi dodo dods doid dois doit dood doop door doos doot dopo dopp dopr dops dopt dorc dord dori doro dorp dorr dors dort dosi doso doss dost dotd doti doto dots dott dpci dpcp dpdt dpos dppc dpsd dpst dpts dric drip drit drod drop drot drrs drsp dscc dscp dscr dscs dsdp dsdr dsip dsos dsps dspt dsrc dsri dsrp dsrr dssc dssi dssp dsst dstc dsto dsts dtcc dtdp dtor dtot dtss dttp iccc icci icco iccp iccr iccs icct icdc icdd icdp icis icoc icod icor icos icpc icpd icpo icps icrc icrr icrs icrt icsc icsd icsi icsp icsr icss icst ictp icts idcr iddo idic idid idio idir idis idoc idos idps idrc idro idsc idso idss idtp idts iicd iiii iiio iiis iiit iioi iioo iiop iios iirc iirs iisc iisd iisi iisp iisr iist iitr iitt ioci iocp iod- iodd iodo ioii ioio ioit iooi iooo ioos iops iori iors ioso ioto ipcc ipcs ipct ipdc ipdi ipid ipod ipop ipos ippc ippo ippr ipri ipsc ipsi ipso ipsp ipss iptc ipto ipts ircc ircd ircs irdc irdo irdp irds iri- iric irid irio irip iris iroc irod irop irpc irps irrc irri irrs irsp irti irtp irts iscc iscd isci isco iscp iscr iscs isct isdc isds isic isis isit iso- isoc isop isor isos ispc ispr isps isri isrp issc issi isso issp issr isss istc istd isti isto istp istr ists itcs itdo itic itis itoi itoo itor itos itpc itri itrs itsi itso itsp itto occc occi occt ocds ocis ocos ocpd ocpp ocro ocrr ocrs oct- octi octo octs odci oddd oddi odds odic odio odir odis odoo odop odor odos odot odrp odso odts oici oido oids oiii oios oipc oirt oisc oisd oist oitc oiti oocr oodi ooid oooo ooos oops oord oort oosi oost ootp oots opds opic opii opio opis opit opo- opor opos oppi oppo opps opsi opti opto opts orci orco orcs ordo ords ori- oric orid orio oris orit oro- oror oros orot orpc orpi orps orri orro orrs orsi orso ortc orto orts oscc osci osco osdi osii osip osis osoi osoo osor osos osrd osro ossd ossi osso ostc osti ostr osts otcd otic otis otit oto- otoo otor otos otpp otro otrs otso otti otto otts pccc pccs pcip pcod pcos pcpp pcps pcrc pcrd pcso pcts pdci pdcp pdic pdoc pdos pdpr pdrc pdrs pdsd pdss pdtc picc pici pico picr pics pict pido pids piip piot pipi pipo pipp pips pirc piri piro pirr pirs pisd pisi piso piss pist piti pito pitr pits pitt pocd poco pocs pod- podd podi podo pods poid poio pois pood poop poor poos poot pop- popc popi popo popp pops popt porc pori poro porr pors port posi poso poss post potc potd poti poto pots pott ppcc ppcd ppci ppcs ppds ppic ppid ppod ppos pppd pppo pppp ppps pprc ppss ppts pptt prcc prcd prcp prcs pri- prid prii pris pro- proc prod proo prop pros prot prpd prps prrd prri prrs prsc prsd prsi prso prss prtc prti prtp prtr psci psco psdc psdi psdp psdr psds psid psip psis psoc psoi psos pspi pspp pspr psps psrd psrp pssc psso psst psts ptcc ptdc ptop ptpd ptrd ptsd pttc rccc rccs rcdc rcds rcic rcid rcis rcos rcpd rcpi rcpo rcps rcpt rcrd rcsc rcsd rcsi rcss rctc rcti rcts rdio rdoc rdos rdpc rdso ricc rico rics rict ridc ridd ridi rido rids riis rios riot ripd ripi ripp ripr rips ript riri rirs risc risd risi riso risp riss rist riti rito rits ritt rocc roco rocs rodd rodi rodo rods roid roio roir rois roit rood rooi roop roor roos root ropo rops rorc rori roro rort rosc rosi roso rosp ross rost rotc roti roto rotr rots rott rpcs rpdp rpii rpos rpps rptd rpts rrrr rrsp rscc rscs rsdd rsds rsid rsis rsos rspo rsps rstp rsts rtcc rtdt rtps rtss rttp rtts s-ic s-ii s-os sccc sccp sccs scct scdc scdp scds sci- scic scid scio scip scir scis scit scoo scop scor scot scpi scpo scps scpt scr- scrc scri scrs scsc scsd scsi scso scsr scst sctc sctd scto sctr scts sdcc sdco sddc sdds sdic sdio sdot sdpr sdps sdrc sdrs sdsc sdss