cccc cccm cccs ccmc ccmm ccms ccoc ccom ccss ccst cctc cctt cmcc cmcs cmmc cmms cmoc cmos cmot cmoy cmsc cmst cmtc coco coct com- comc comm como coms coom coos coot cosc cosm coso coss cost cosy cotc coto cots cott coty coyo coys coyt cscc csco cscs csmc csom csos csot cssm cstc cstm csto csts csys ctmo ctos ctot ctsc ctss ctts cyc- cycc cycs cym- cymo cyst cyt- cyto cyy- cyyc mccc mcmc mcmt mcot mcss mcst mctc mcts mmcc mmcm mmcs mmct mmmc mmmm mmms mmsc mmst mmts mmyy moco mocs momo moms momy mooc moos moot mosc moso moss most mosy motm moto mots mott moty moyo mscc msco msmc msmm msms mssm msst mstc msts mtom mtss mtst mtts myc- myco mymy myo- myos myot mys- myss myst myto myys occc occt ocms ocom ocos oct- octo octs octy ocys omo- omoo omyt ooms oooo ooos oost oots ooty oscc osco osm- osmo osoo osos osso ossy ostc osts osyt oto- otoo otos otoy otso otto otts oyss oyst s-os sccc sccm sccs scct sccy scmc scmm scmo scms scom scoo scot scsc scso scst sctc scto scts smcc smoc smos smot smoy smsc smss smtc smty socm soco socs socy somm somo somy soom soos soot sooy soso soss sost sotc sotm soto sots soyo soys soyt sscc sscs ssmc ssoc ssot sssc sssm ssss sstc ssts stcc stcs stmc stms stmt stom stoo stos stot stoy stsm stss sttc stys syco sym- syms syso syss syst sytt t-mo tccc tcom tcos tctc tcts tmcc tmcm tmos tmsc tmtt to-y toco tomm tomo toms tomt tomy toom toos toot tosc toso toss tost tosy totc totm toto tots tott toty toym toyo toys toyt tscc tsmc tsom tsos tsoy tssm tsst tstc tstm tsts tsys ttms ttoy ttss tttt ttys tyco tyss tyst tyto tytt tyty yccc yctc ymts yomo yoot yoso yost yott yoyo ysco yyyy