c-- ccc ccm cco ccp ccr ccs cct cmc cmm cmo cmp cmr cms cmt co- coc com coo cop cor cos cot cpc cpm cpo cpp cpr cps cpt crc crm cro crp crr crs crt csc csm cso csp csr css cst ctc ctm cto ctp ctr cts ctt m-o m-r mc- mcc mcm mco mcp mcr mcs mct mmc mmm mmo mmp mmr mms mmt moc mom moo mop mor mos mot mpc mpm mpo mpp mpr mps mpt mrc mrm mro mrp mrr mrs mrt msc msm mso msp msr mss mst mtc mtm mto mtp mtr mts mtt oc- occ ocm oco ocp ocr ocs oct om- omc omm omo omp omr oms omt oo- ooc oom ooo oop oor oos oot op- opc opm opo opp opr ops opt or- orc orm oro orp orr ors ort os- osc osm oso osp osr oss ost ot- otc otm oto otp otr ots ott p-p pcc pcm pco pcp pcr pcs pct pmc pmm pmo pmp pmr pms pmt poc pom poo pop por pos pot ppc ppm ppo ppp ppr pps ppt prc prm pro prp prr prs prt ps- psc psm pso psp psr pss pst pt- ptc ptm pto ptp ptr pts ptt rcc rcm rco rcp rcr rcs rct rmc rmm rmo rmp rmr rms rmt roc rom roo rop ror ros rot rpc rpm rpo rpp rpr rps rpt rrc rrm rrp rrr rrs rrt rsc rsm rso rsp rsr rss rst rtc rtm rto rtp rtr rts rtt scc scm sco scp scr scs sct smc smm smo smp smr sms smt soc som soo sop sor sos sot spc spm spo spp spr sps spt sr- src srm sro srp srr srs srt ss- ssc ssm sso ssp ssr sss sst stc stm sto stp str sts stt tcc tcm tco tcp tcr tcs tct tmc tmm tmo tmp tmr tms tmt to- toc tom too top tor tos tot tpc tpm tpo tpp tpr tps tpt trc trm tro trp trr trs trt tsc tsm tso tsp tsr tss tst ttc ttm tto ttp ttr tts ttt