c-- ccc cck ccm ccn cco ccr cct ckc ckm cko ckt cmc cmk cmm cmn cmo cmr cmt cn- cnc cnm cnn cno cnr cnt co- coc cok com con coo cor cot crc crk crm crn cro crr crt ctc ctk ctm ctn cto ctr ctt k-t kcc kck kcm kcn kcr kct kkc kkk kkm kkn kkr kkt kmc kmk kmm kmo kmt kn- knc knk knm knn kno knr knt koc kok kom kon koo kor kot krc krk krn kro krr krt ktc ktk ktm ktn kto ktr ktt m-o m-r mc- mcc mck mcm mcn mco mcr mct mkc mkk mkm mkn mko mkr mkt mmc mmk mmm mmn mmo mmr mmt mnc mnk mnm mnn mno mnr mnt moc mok mom mon moo mor mot mrc mrk mrm mrn mro mrr mrt mtc mtk mtm mtn mto mtr mtt ncc nck ncm ncn nco ncr nct nkc nkk nkm nkn nko nkr nkt nmc nmk nmm nmn nmo nmr nmt nnc nnk nnm nnn nno nnt no- noc nok nom non noo nor not nrc nrk nrm nrn nro nrr nrt ntc ntk ntm ntn nto ntr ntt oc- occ ock ocm ocn oco ocr oct okc okk oko okr om- omc omm omn omo omr omt on- onc onk onn ono onr ont oo- ooc ook oom oon ooo oor oot or- orc ork orm orn oro orr ort ot- otc otk otm otn oto otr ott rcc rcm rcn rco rcr rct rkc rkk rkm rko rkt rmc rmm rmn rmo rmr rmt rnc rnm rnn rno rnr rnt roc rok rom ron roo ror rot rrc rrk rrm rrn rrr rrt rtc rtk rtm rtn rto rtr rtt tcc tck tcm tcn tco tcr tct tkc tkk tkm tko tkr tkt tmc tmk tmm tmn tmo tmr tmt tnc tnk tnm tnn tno tnr tnt to- toc tok tom ton too tor tot trc trk trm trn tro trr trt ttc ttk ttm ttn tto ttr ttt