c-- ccc ccm cco ccp ccs cct cmc cmm cmo cmp cms cmt cmy co- coc com coo cop cos cot coy cpc cpm cpo cpp cps cpt csc csm cso csp css cst csy ctc ctm cto ctp cts ctt cty cyc cym cyo cyp cys cyt m-o mc- mcc mcm mco mcp mcs mct mmc mmm mmo mmp mms mmt moc mom moo mop mos mot moy mpc mpm mpo mpp mps mpt msc msm mso msp mss mst msy mtc mtm mto mtp mts mtt my- myc mym myo mys myt oc- occ ocm oco ocp ocs oct om- omc omm omo omp oms omt omy oo- ooc oom ooo oop oos oot op- opc opm opo opp ops opt opy os- osc osm oso osp oss ost ot- otc otm oto otp ots ott oyo oys p-p pcc pcm pco pcp pcs pct pmc pmm pmo pmp pms pmt poc pom poo pop pos pot poy ppc ppm ppo ppp pps ppt ps- psc psm pso psp pss pst psy pt- ptc ptm pto ptp pts ptt pty py- pyc pym pyo pys pyt scc scm sco scp scs sct smc smm smo smp sms smt smy soc som soo sop sos sot soy spc spm spo spp sps spt spy ss- ssc ssm sso ssp sss sst stc stm sto stp sts stt sty sy- syc sym syp sys syt tcc tcm tco tcp tcs tct tmc tmm tmo tmp tms tmt tmy to- toc tom too top tos tot toy tpc tpm tpo tpp tps tpt tsc tsm tso tsp tss tst tsy ttc ttm tto ttp tts ttt tty tyc tym tyo typ tys tyt ycc yco ycp ycs ycy ymc ymm ymo yms ymt yoc yom yoo yop yos yot yoy ypo yps ysc ysm yso ysp yss yst ysy ytc ytm yto ytp yts ytt yyc yys yyt yyy