c-cd cccc cccp cccs ccdc ccdp ccds ccoc ccod ccpp ccps ccsd ccsp ccss ccst cctc cctt cdcs cdos cdot cdps cdss coco cocp coct codd cods cood coop coos coot copd copo copp cops copt cosc coso cosp coss cost cotc coto cots cott cpcs cpos cppd cpps cpsc cpso cptp cpts cscc cscd csco cscs csdp csos csot cspc cspd csps cspt cssd cstc cstd csto csts ctcp ctos ctot ctpo ctpp ctps ctsc ctss ctts dccc dccp dccs dcct dcds dcop dcos dcpo dcps dcsc dcss dctc dcts dddd ddoc ddot ddpo ddps ddss ddts doco docs doct dod- dodd dodo dods dood doop doos doot dopo dopp dops dopt doso doss dost dotd doto dots dott dpcp dpdt dpos dppc dpsd dpst dpts dscc dscp dscs dsdp dsos dsps dspt dssc dssp dsst dstc dsto dsts dtcc dtdp dtot dtss dttp occc occt ocds ocos ocpd ocpp oct- octo octs oddd odds odoo odop odos odot odso odts oooo ooos oops oost ootp oots opds opo- opos oppo opps opto opts oscc osco osoo osos ossd osso ostc osts otcd oto- otoo otos otpp otso otto otts pccc pccs pcod pcos pcpp pcps pcso pcts pdcp pdoc pdos pdsd pdss pdtc pocd poco pocs pod- podd podo pods pood poop poos poot pop- popc popo popp pops popt poso poss post potc potd poto pots pott ppcc ppcd ppcs ppds ppod ppos pppd pppo pppp ppps ppss ppts pptt psco psdc psdp psds psoc psos pspp psps pssc psso psst psts ptcc ptdc ptop ptpd ptsd pttc s-os sccc sccp sccs scct scdc scdp scds scoo scop scot scpo scps scpt scsc scsd scso scst sctc sctd scto scts sdcc sdco sddc sdds sdot sdps sdsc sdss soco socs sodd sodo sods sood soop soos soot sopd sopo sopp sops soso soss sost sotc soto sotp sots spcc spco spcs spdc spdp spdt spoc spod spoo spop spos spot sppd spps spsd spso spsp spss spst sptc spto spts sscc sscp sscs ssdc ssdd ssdp ssoc ssop ssot sspc sspo ssps sspt sssc ssss sstc sstd sstp ssts stcc stcp stcs stds stod stoo stop stos stot stpd stpp stps stss sttc sttd tccc tcdd tcos tcpo tctc tcts tdss toco todd todo tods todt tood toos toot top- topd topo topp tops topt tosc toso toss tost totc totd toto tots tott tpcd tpcp tpcs tppd tppp tpsc tptp tscc tscp tsop tsos tspo tsps tspt tsst tstc tsts ttcp ttop ttss tttt