c-cd cccc cccs ccdc ccdh ccds cchs ccoc ccod ccsd ccss ccst cctc cctt cdcs cdhs cdos cdot cdss chch chcs chhs choc chod choh choo chos chsc chsh chst chto chtt coch coco coct codd cods coho cohs cood cooh coos coot cosc cosh coso coss cost cotc coth coto cots cott cscc cscd csch csco cscs cshs csos csot cssd cstc cstd csto csts cths ctos ctot ctsc ctss ctts dccc dccs dcct dcds dchs dcos dcsc dcss dctc dcts dddd ddoc ddot ddss ddts dhod doch doco docs doct dod- dodd dodo dods dohc dohs dood doos doot dosh doso doss dost dotd doth doto dots dott dscc dsch dscs dshs dsos dssc dsst dstc dsto dsts dtcc dthd dtot dtss hccc hcch hccs hchs hcsc hcso hcss hcst hdhs hdoc hdod hdos hdss hdtt hhds hhhh hhhs hoch hocs hodh hods hoho hood hoos hoot hosh hoss host hotd hoth hoto hots hott hscc hsct hshs hsts htcc hths htoh htsc occc occt ocds ochs ocht ocos oct- octo octs oddd odds odoh odoo odos odot odso odts ohcc ohho ohhs ohoh ohos ohso ohss ohto ooho oohs oooh oooo ooos oost oots oscc osco oshc osho oshs osoo osos ossd osso ostc osts otcd otho oths oto- otoh otoo otos otso otto otts s-os sccc sccs scct scdc scds sch- schh scho schs scoh scoo scot scsc scsd scsh scso scst sctc sctd scto scts sdcc sdch sdco sddc sdds sdhd sdhs sdot sdsc sdss shcc shhh shhs shod shoo shos shot shsc shts soch soco socs sodd sodo sods sohh soho sohs sood soos soot sosh soso soss sost sotc soth soto sots sscc sscs ssdc ssdd sshs ssoc ssot sssc sssh ssss sstc sstd ssth ssts stcc stch stcs stds sths stod stoo stos stot stss sttc sttd tccc tcdd tch- tchh tcho tchs tcos tcsh tctc tcts tdhs tdss thch thds thoo thos thot thsd thss thts toch toco todd todo tods todt toho tood tooh toos toot tosc tosh toso toss tost totc totd toth toto tots tott tscc tshs tsos tsst tstc tsts ttss tttt