c-cd cccc cccl cccp cccs ccdc ccdp ccds cclc ccls ccoc ccod ccpl ccpp ccps ccsd ccsl ccsp ccss ccst cctc cctl cctt cdcs cddl cdls cdos cdot cdps cdss clcd cldc clod cloo clop clos clot clpp clsc cltc clts coco cocp coct codd codl cods col- cold coll colo colp cols colt cood cool coop coos coot copd copo copp cops copt cosc cosl coso cosp coss cost cotc coto cots cott cpcs cpdl cplc cpls cpos cppd cpps cpsc cpsl cpso cptp cpts cscc cscd cscl csco cscs csdp csld cslp csos csot cspc cspd csps cspt cssd cstc cstd csto csts ctcp ctls ctol ctos ctot ctpo ctpp ctps ctsc ctss ctts dccc dccl dccp dccs dcct dcds dcls dcop dcos dcpl dcpo dcps dcsc dcss dctc dcts dddd ddlc ddoc ddot ddpo ddps ddss ddts dlco dlcs dlos dlst doco docs doct dod- dodd dodo dods dold doll dolo dolp dols dolt dood dool doop doos doot dopo dopp dops dopt doso doss dost dotd doto dots dott dpcp dpdt dpll dpls dpos dppc dpsd dpst dpts dscc dscp dscs dsdp dsls dsos dsps dspt dssc dssp dsst dstc dsto dsts dtcc dtdp dtot dtpl dtss dttp lccc lccs lcdd lcdp lcds lcls lcpc lcpd lcpl lcps lcsc lcsd lcsp lctl lcto lcts lddp ldls ldos ldpc llcc llcs lldc lldp llds lllc llll lloc llod lloo llps locc loco locs lods lold loll lolo lols looc lood lool loop loos loot lopp lops losc loso losp loss lost lotd lotl loto lots lott lpod lppl lpsc lpss lsco lscs lsds lspl lsso lssp lsts ltcc ltcs ltds ltps ltsp lttc occc occt ocds oclc ocos ocpd ocpp oct- octo octs oddd odds odoo odop odos odot odso odts olcc olds ollo olos olot olpc olst oold oolo oooo ooos oops oost ootp oots opds opls opo- opos oppo opps opto opts oscc oscl osco oslo osoo osos ossd osso ostc osts otcd otcl oto- otoo otos otpp otso otto otts pccc pccl pccs pcll pclo pcod pcos pcpp pcps pcso pcts pdcp pdlc pdoc pdos pdsd pdss pdtc plcc pldt ploc plod ploo plop plos plot plpp plss pltt pocd poco pocs pod- podd podo pods pold poll polo pols polt pood pool poop poos poot pop- popc popo popp pops popt poso poss post potc potd poto pots pott ppcc ppcd ppcs ppds pplo ppod ppos pppd pppo pppp ppps ppss ppts pptt psco psdc psdp psds psoc psol psos pspp psps pssc psso psst psts ptcc ptcl ptdc ptld ptol ptop ptpd ptsd pttc s-os sccc sccl sccp sccs scct scdc scdp scds scl- sclc scls scol scoo scop scot scpl scpo scps scpt scsc scsd scsl scso scst sctc sctd sctl scto scts sdcc sdco sddc sdds sdlc sdls sdlt sdot sdps sdsc sdsl sdss slcc slcd slds sllp sloc slod sloo slop slos slot slpp slps slsc slst slts socl soco socs sodd sodo sods sold soll solo solp sols solt sood sool soop soos soot sopd sopo sopp sops soso soss sost sotc sotl soto sotp sots spcc spco spcs spdc spdl spdp spdt splc splo splp spls spoc spod spoo spop spos spot sppd spps spsd spso spsp spss spst sptc spto spts sscc sscp sscs ssdc ssdd ssdp sslc sslp sslt ssoc ssop ssot sspc sspl sspo ssps sspt sssc ssss sstc sstd sstl sstp ssts stcc stcp stcs stds stlc stld stlo stlt stod stol stoo stop stos stot stpd stpp stps stss sttc sttd tccc tcdd tcos tcpo tctc tcts tdls tdss tlco tldp tlos toco todd todo tods todt tol- told toll tolo tolt tood tool toos toot top- topd topo topp tops topt tosc toso toss tost totc totd toto tots tott tpcd tpcp tpcs tpld tpls tpol tppd tppp tpsc tptp tscc tscp tsol tsop tsos tspo tsps tspt tsst tstc tsts ttcp ttop ttss tttt