c-- ccc cck ccm ccn cco ccs cct ckc ckm cko cks ckt cmc cmk cmm cmn cmo cms cmt cn- cnc cnm cnn cno cns cnt co- coc cok com con coo cos cot csc csk csm csn cso css cst ctc ctk ctm ctn cto cts ctt k-t kcc kck kcm kcn kcs kct kkc kkk kkm kkn kks kkt kmc kmk kmm kmo kms kmt kn- knc knk knm knn kno knt koc kok kom kon koo kos kot ksc ksk ksm ksn kso kss kst ktc ktk ktm ktn kto kts ktt m-o mc- mcc mck mcm mcn mco mcs mct mkc mkk mkm mkn mko mks mkt mmc mmk mmm mmn mmo mms mmt mnc mnk mnm mnn mno mns mnt moc mok mom mon moo mos mot msc msk msm msn mso mss mst mtc mtk mtm mtn mto mts mtt ncc nck ncm ncn nco ncs nct nkc nkk nkm nkn nko nks nkt nmc nmk nmm nmn nmo nms nmt nnc nnk nnm nnn nno nns nnt no- noc nok nom non noo nos not nsc nsk nsm nsn nso nss nst ntc ntk ntm ntn nto nts ntt oc- occ ock ocm ocn oco ocs oct okc okk oko oks om- omc omm omn omo oms omt on- onc onk onn ono ons ont oo- ooc ook oom oon ooo oos oot os- osc osk osm osn oso oss ost ot- otc otk otm otn oto ots ott scc sck scm scn sco scs sct sk- skc skk skm sko sks skt smc smk smm smn smo sms smt snc snk snm snn sno sns snt soc sok som son soo sos sot ss- ssc ssk ssm ssn sso sss sst stc stk stm stn sto sts stt tcc tck tcm tcn tco tcs tct tkc tkk tkm tko tks tkt tmc tmk tmm tmn tmo tms tmt tnc tnk tnm tnn tno tns tnt to- toc tok tom ton too tos tot tsc tsk tsm tsn tso tss tst ttc ttk ttm ttn tto tts ttt