c-cd cccc ccci cccs ccdc ccdi ccds ccic ccid ccii ccis ccoc ccod ccsd ccsi ccss ccst cctc cctt cdcs cdic cdii cdio cdis cdos cdot cdss cicc cici cico cics cict cidc cidi cids cidt ciid ciii ciis ciit cios cis- cisc cisd ciss cist citi cito cits citt coco coct codd codi cods cois coit cood coos coot cosc cosi coso coss cost cotc coti coto cots cott cscc cscd csci csco cscs csid csio csis csit csos csot cssd cstc cstd csto csts ctic ctos ctot ctsc ctss ctts dccc dcci dccs dcct dcds dcii dcio dcis dcos dcsc dcss dctc dcts dddd ddoc ddot ddss ddts dici dico dict didi dido dids diii diis dioc dios diot dis- disc disd disi diso diss dist diti dito dits ditt doci doco docs doct dod- dodd dodi dodo dods doid dois doit dood doos doot dosi doso doss dost dotd doti doto dots dott dscc dscs dsos dssc dssi dsst dstc dsto dsts dtcc dtot dtss iccc icci icco iccs icct icdc icdd icis icoc icod icos icsc icsd icsi icss icst icts iddo idic idid idio idis idoc idos idsc idso idss idts iicd iiii iiio iiis iiit iioi iioo iios iisc iisd iisi iist iitt ioci iod- iodd iodo ioii ioio ioit iooi iooo ioos ioso ioto iscc iscd isci isco iscs isct isdc isds isic isis isit iso- isoc isos issc issi isso isss istc istd isti isto ists itcs itdo itic itis itoi itoo itos itsi itso itto occc occi occt ocds ocis ocos oct- octi octo octs odci oddd oddi odds odic odio odis odoo odos odot odso odts oici oido oids oiii oios oisc oisd oist oitc oiti oodi ooid oooo ooos oosi oost oots oscc osci osco osdi osii osis osoi osoo osos ossd ossi osso ostc osti osts otcd otic otis otit oto- otoo otos otso otti otto otts s-ic s-ii s-os sccc sccs scct scdc scds sci- scic scid scio scis scit scoo scot scsc scsd scsi scso scst sctc sctd scto scts sdcc sdco sddc sdds sdic sdio sdot sdsc sdss sicc sici sico sics sidd sidi sido sids siit siod sios siot sisc sisd sisi siss sist sit- sitc sitd siti sito sits sitt soci soco socs sodd sodo sods soic sois soit sood soos soot sosi soso soss sost sotc soto sots sscc ssci sscs ssdc ssdd ssid ssis ssit ssoc ssot sssc sssi ssss sstc sstd ssts stcc stcs stds stic stid stio stis stit stod stoo stos stot stsi stss sttc sttd tccc tcdd tcos tctc tcts tdis tdss ticc tico tics tidc tidd tids tiit tios tisi tiso tiss tist titc titi tito tits titt toci toco todd todi todo tods todt toid tois toit tood toos toot tosc tosi toso toss tost totc totd toti toto tots tott tscc tsid tsis tsoi tsos tssi tsst tstc tsts ttss tttt