cccc cccf cccs ccfc ccff ccnc ccnf ccns ccoc ccsf ccsn ccss ccst cctc cctt cfcf cfcn cfco cfcs cfns cfos cftc cnco cnss cntc cntf coco coct cofc coff cofs coft con- conc conf conn cono cons cont coof coon coos coot cosc coso coss cost cotc cotn coto cots cott cscc cscf csco cscs csfc csos csot cstc csto csts ctcf ctfc ctfo ctfs ctns ctos ctot ctsc ctsn ctss cttn ctts fccf fcot fcsc fcst fcto ffcc ffff ffss fftf foco focs fofo fono fons font foof foon foos foot foso foss fost foto fots fott fscc fsfo fssc fssf ft-c ftfc ftos nccc nccf nccn nccs ncct ncfc ncnc ncoc ncos ncsc ncsf ncss ncst nctc nfct nfff nfon nftc nfto nnnn nnos nnot nnss nntn noco nocs noct non- nonn nono nons nont noo- noon nooo noos noot nos- noss nost not- noto nots nott nscc nscs nsfc nsfs nsof nsos nssc nssf nsso nsss nstc nsts ntcc ntfc ntfs ntof ntsc ntsf ntss ntto occc occn occt ocon ocos oct- octo octs off- offc offo offs ofno ofst onc- oncf onco onct onno onon onos onsc onso onst ont- ontc onto ooff oofs oons oont oooo ooos oost oots oscc osco osno osoo osos osso ostc osts otfc oto- otof oton otoo otos otso otto otts s-os sccc sccs scct scfc scnt scon scoo scot scsc scsn scso scst sctc sctn scto scts sfcc sfco sfcs sffc sfnt sfos sfss sfts sncc sncf snco snns snoc snoo snos snot soco socs sofo soft son- sono sons sont soof soon soos soot soso soss sost sotc sotn soto sots sscc sscs ssfc ssns ssoc ssot sssc sssf ssss sstc ssts stcc stcs stfc stfn stnn stns stof ston stoo stos stot stsf stss sttc tccc tcfc tcnn tcon tcos tctc tcts tfot tfss tftc tncc tnfc tnts toco toff tofo toft tonn tono tons toof toon toos toot tosc toso toss tost totc toto tots tott tscc tsfc tsos tssf tsst tstc tsts ttcn ttfc ttff ttfn tton ttss tttt