c-- ccc ccf cck ccn cco ccp ccr cfc cff cfk cfn cfo cfp cfr ckc cko cn- cnc cnf cnn cno cnp cnr co- coc cof cok con coo cop cor cpc cpf cpk cpn cpo cpp cpr crc crf crk crn cro crp crr fcc fcf fck fcn fco fcp fcr ffc fff ffk ffn ffo ffp ffr fkc fkf fkk fkp fnc fnf fnk fnn fnp fnr foc fof fok fon foo fop for fpc fpk fpn fpo fpp fpr frc frf frk frn fro frp frr kcc kck kcn kcp kcr kfc kff kfo kkc kkk kkn kkp kkr kn- knc knf knk knn kno knp knr koc kof kok kon koo kop kor kpc kpf kpk kpn kpo kpp kpr krc krf krk krn kro krp krr ncc ncf nck ncn nco ncp ncr nfc nff nfk nfn nfo nfp nfr nkc nkf nkk nkn nko nkp nkr nnc nnf nnk nnn nno nnp no- noc nof nok non noo nop nor npc npf npn npo npp npr nrc nrf nrk nrn nro nrp nrr oc- occ ocf ock ocn oco ocp ocr of- ofc off ofn ofo ofp ofr okc okk oko okp okr on- onc onf onk onn ono onp onr oo- ooc oof ook oon ooo oop oor op- opc opf opk opn opo opp opr or- orc orf ork orn oro orp orr p-p pcc pcf pck pcn pco pcp pcr pfc pff pfk pfn pfo pfp pfr pkc pkf pkn pko pkp pkr pn- pnc pnf pnk pnn pno pnp pnr poc pof pok pon poo pop por ppc ppf ppk ppn ppo ppp ppr prc prf prk prn pro prp prr rcc rcf rcn rco rcp rcr rfc rff rfk rfn rfo rfp rfr rkc rkf rkk rko rkp rnc rnn rno rnp rnr roc rof rok ron roo rop ror rpc rpf rpk rpn rpo rpp rpr rrc rrf rrk rrn rrp rrr