c-cd cccc ccci cccp cccs ccdc ccdi ccdp ccds ccic ccid ccii ccip ccis ccoc ccod ccpp ccps ccsd ccsi ccsp ccss ccst cctc cctt cdcs cdic cdii cdio cdis cdos cdot cdps cdss cicc cici cico cics cict cidc cidi cidp cids cidt ciid ciii ciis ciit cios cipo cipp cips cis- cisc cisd cisp ciss cist citi cito citp cits citt coco cocp coct codd codi cods coip cois coit cood coop coos coot copd copi copo copp cops copt cosc cosi coso cosp coss cost cotc coti coto cots cott cpcs cpic cpio cpos cppd cpps cpsc cpso cptp cpts cscc cscd csci csco cscs csdp csid csio csis csit csos csot cspc cspd cspi csps cspt cssd cstc cstd csto csts ctcp ctic ctos ctot ctpo ctpp ctps 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 ddss ddts dici dico dict didi dido dids diii diis dioc diop dios diot dipc dipo dipp dips dipt 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 doos doot dopo dopp dops dopt dosi doso doss dost dotd doti doto dots dott dpci dpcp dpdt dpos dppc dpsd dpst dpts dscc dscp dscs dsdp dsip dsos dsps dspt dssc dssi dssp dsst dstc dsto dsts dtcc dtdp dtot dtss dttp iccc icci icco iccp iccs icct icdc icdd icdp icis icoc icod icos icpc icpd icpo icps icsc icsd icsi icsp icss icst ictp icts iddo idic idid idio idis idoc idos idps idsc idso idss idtp idts iicd iiii iiio iiis iiit iioi iioo iiop iios iisc iisd iisi iisp iist iitt ioci iocp iod- iodd iodo ioii ioio ioit iooi iooo ioos iops ioso ioto ipcc ipcs ipct ipdc ipdi ipid ipod ipop ipos ippc ippo ipsc ipsi ipso ipsp ipss iptc ipto ipts iscc iscd isci isco iscp iscs isct isdc isds isic isis isit iso- isoc isop isos ispc isps issc issi isso issp isss istc istd isti isto istp ists itcs itdo itic itis itoi itoo itos itpc itsi itso itsp itto occc occi occt ocds ocis ocos ocpd ocpp oct- octi octo octs odci oddd oddi odds odic odio odis odoo odop odos odot odso odts oici oido oids oiii oios oipc oisc oisd oist oitc oiti oodi ooid oooo ooos oops oosi oost ootp oots opds opic opii opio opis opit opo- opos oppi oppo opps opsi opti opto opts oscc osci osco osdi osii osip osis osoi osoo osos ossd ossi osso ostc osti osts otcd otic otis otit oto- otoo otos otpp otso otti otto otts pccc pccs pcip pcod pcos pcpp pcps pcso pcts pdci pdcp pdic pdoc pdos pdsd pdss pdtc picc pici pico pics pict pido pids piip piot pipi pipo pipp pips pisd pisi piso piss pist piti pito pits pitt pocd poco pocs pod- podd podi podo pods poid poio pois pood poop poos poot pop- popc popi popo popp pops popt posi poso poss post potc potd poti poto pots pott ppcc ppcd ppci ppcs ppds ppic ppid ppod ppos pppd pppo pppp ppps ppss ppts pptt psci psco psdc psdi psdp psds psid psip psis psoc psoi psos pspi pspp psps pssc psso psst psts ptcc ptdc ptop ptpd ptsd pttc s-ic s-ii s-os sccc sccp sccs scct scdc scdp scds sci- scic scid scio scip scis scit scoo scop scot scpi scpo scps scpt scsc scsd scsi scso scst sctc sctd scto scts sdcc sdco sddc sdds sdic sdio sdot sdps sdsc sdss sicc sici sico sicp sics sidd sidi sido sids siit siod siop sios siot sipc sipi sipo sipp sips sipt sisc sisd sisi siss sist sit- sitc sitd siti sito sits sitt soci soco socs sodd sodo sods soic sois soit sood soop soos soot sopd sopi sopo sopp sops sosi soso soss sost sotc soto sotp sots spcc spco spcs spdc spdp spdt spic spio spip spis spit spoc spod spoo spop spos spot sppd spps spsd spso spsp spss spst sptc spto spts sscc ssci sscp sscs ssdc ssdd ssdp ssid ssis ssit ssoc ssop ssot sspc sspo ssps sspt sssc sssi ssss sstc sstd sstp ssts stcc stcp stcs stds stic stid stio stip stis stit stod stoo stop stos stot stpd stpp stps stsi stss sttc sttd tccc tcdd tcos tcpo tctc tcts tdis tdss ticc tico tics tidc tidd tids tiit tiop tios tip- tipc tipi tipo tipp tips tipt tisi tiso tiss tist titc titi tito titp tits titt toci toco todd todi todo tods todt toid tois toit tood toos toot top- topd topi topo topp tops topt tosc tosi toso toss tost totc totd toti toto tots tott tpcd tpcp tpcs tppd tppp tpsc tptp tscc tscp tsid tsis tsoi tsop tsos tspo tsps tspt tssi tsst tstc tsts ttcp ttop ttss tttt