cccc cccl cccp cccs cclc ccls ccoc ccpl ccpp ccpr ccps ccrc ccrl ccrp ccrs ccrt ccsl ccsp ccss ccst cctc cctl cctt cloo clop clor clos clot clpp clro clrs clsc cltc clts coco cocp coct col- coll colo colp cols colt cool coop coos coot copo copp copr cops copt cor- corc corl coro corp corr cors cort cosc cosl coso cosp coss cost cotc coto cots cott cpcs cplc cpls cpos cpps cprs cprt cpsc cpsl cpso cpsr cptp cptr cpts crcc crcr crls croc crol croo crop cror crot crpc crps crrt crsp crss crst crtc crtl crtp crts cscc cscl csco cscr cscs cslp cslr csor csos csot cspc csps cspt csrc csrs cssr cstc csto cstr csts ctcp ctls ctol ctor ctos ctot ctpo ctpp ctps ctrc ctrl ctrp ctrs ctsc ctss ctts lccc lccs lcls lcor lcpc lcpl lcps lcrl lcrs lcsc lcsp lcsr lctl lcto lcts llcc llcs lllc llll lloc lloo llps locc loco locs loll lolo lols looc lool loop loor loos loot lopp lops loro lors losc loso losp loss lost lotl loto lotr lots lott lppl lprp lpsc lpss lrcs lroc lrps lrrc lrrr lrst lrts ls-r lsco lscs lspl lspr lsrc lsso lssp lssr lsts ltcc ltcs ltps ltrs ltsp ltsr lttc lttr occc occt oclc ocos ocpp ocrl ocro ocrr ocrs oct- octo octs olcc ollo olor olos olot olpc olst oocr oolo oooo ooos oops oort oost ootp oots opls opo- opor opos oppo opps opto opts orco orcs orlo oro- oror oros orot orpc orps orro orrs orso ortc orto orts oscc oscl osco oslo osoo osor osos osro osso ostc ostr osts otcl oto- otoo otor otos otpp otro otrs otso otto otts pccc pccl pccs pcll pclo pcos pcpp pcps pcrc pcrl pcso pcts plcc ploc ploo plop plos plot plpp plss pltt poco pocs poll polo pols polt pool poop poor poos poot pop- popc popo popp pops popt porc poro porr pors port poso poss post potc poto pots pott ppcc ppcs pplo ppos pppo pppp ppps pprc ppss ppts pptt prcc prcp prcs prlr prls pro- proc prol proo prop pros prot prps prrs prsc prsl prso prss prtc prtp prtr psco psoc psol psos pspp pspr psps psrp pssc psso psst psts ptcc ptcl ptol ptop pttc rccc rccs rcls rcos rcpo rcps rcpt rcsc rcsl rcss rctc rcts rlcs rlls rocc roco rocs roll rolo rolp rolt rool roop roor roos root ropo rops rorc roro rort rosc roso rosp ross rost rotc rotl roto rotr rots rott rpcs rpls rpos rpps rpts rrrr rrsp rscc rscs rslc rslp rsos rspo rsps rssl rstp rsts rtcc rtls rtlt rtps rtss rttp rtts s-os sccc sccl sccp sccs scct scl- sclc scls scol scoo scop scor scot scpl scpo scps scpt scr- scrc scrs scsc scsl scso scsr scst sctc sctl scto sctr scts slcc sllp sloc sloo slop slos slot slpp slps slrc slrp slrs slsc slst slts socl soco socr socs soll solo solp solr sols solt sool soop soor soos soot sopo sopp sops soro sorr sors sort soso soss sost sotc sotl soto sotp sots spcc spco spcs splc splo splp splr spls spoc spoo spop spor spos spot spps spro sprs spso spsp spss spst sptc spto sptr spts srcc srct sros srpc srps srpt srsp srtp srtr sscc sscp sscs sslc sslp sslt ssoc ssop ssot sspc sspl sspo ssps sspt ssrc ssrl ssrs sssc ssss sstc sstl sstp ssts stcc stcp stcs stlc stlo stlt stol stoo stop stor stos stot stpp stps strc stro strs stss sttc sttr tccc tcos tcpo tctc tcts tlco tlos tlrs toco tol- toll tolo tolt tool toor toos toot top- topo topp tops topt torc toro torp torr tors tort tosc toso toss tost totc toto totr tots tott tpcp tpcs tpls tpol tppp tppr tprs tpsc tptp tptr trcc trcl troc troo trop tros trot trpc trpp trps trst trtc trtr tscc tscp tsol tsop tsos tspo tsps tspt tssr tsst tstc tsts ttcp ttop ttss tttt