c-- ccc ccm ccn cco ccp ccs cct cmc cmm cmn cmo cmp cms cmt cn- cnc cnm cnn cno cnp cns cnt co- coc com con coo cop cos cot cpc cpm cpn cpo cpp cps cpt csc csm csn cso csp css cst ctc ctm ctn cto ctp cts ctt m-o mc- mcc mcm mcn mco mcp mcs mct mmc mmm mmn mmo mmp mms mmt mnc mnm mnn mno mnp mns mnt moc mom mon moo mop mos mot mpc mpm mpn mpo mpp mps mpt msc msm msn mso msp mss mst mtc mtm mtn mto mtp mts mtt ncc ncm ncn nco ncp ncs nct nmc nmm nmn nmo nmp nms nmt nnc nnm nnn nno nnp nns nnt no- noc nom non noo nop nos not npc npm npn npo npp nps npt nsc nsm nsn nso nsp nss nst ntc ntm ntn nto ntp nts ntt oc- occ ocm ocn oco ocp ocs oct om- omc omm omn omo omp oms omt on- onc onn ono onp ons ont oo- ooc oom oon ooo oop oos oot op- opc opm opn opo opp ops opt os- osc osm osn oso osp oss ost ot- otc otm otn oto otp ots ott p-p pcc pcm pcn pco pcp pcs pct pmc pmm pmn pmo pmp pms pmt pn- pnc pnm pnn pno pnp pns pnt poc pom pon poo pop pos pot ppc ppm ppn ppo ppp pps ppt ps- psc psm psn pso psp pss pst pt- ptc ptm ptn pto ptp pts ptt scc scm scn sco scp scs sct smc smm smn smo smp sms smt snc snm snn sno snp sns snt soc som son soo sop sos sot spc spm spn spo spp sps spt ss- ssc ssm ssn sso ssp sss sst stc stm stn sto stp sts stt tcc tcm tcn tco tcp tcs tct tmc tmm tmn tmo tmp tms tmt tnc tnm tnn tno tnp tns tnt to- toc tom ton too top tos tot tpc tpm tpn tpo tpp tps tpt tsc tsm tsn tso tsp tss tst ttc ttm ttn tto ttp tts ttt