-ic c-- ccc ccf cci cck cco ccp ccr cfc cff cfi cfk cfo cfp cfr ci- cic cif cii cik cio cip cir ckc cki cko co- coc cof coi cok coo cop cor cpc cpf cpi cpk cpo cpp cpr crc crf cri crk cro crp crr fcc fcf fci fck fco fcp fcr ffc fff ffi ffk ffo ffp ffr fic fif fii fik fip fir fkc fkf fki fkk fkp foc fof foi fok foo fop for fpc fpi fpk fpo fpp fpr frc frf fri frk fro frp frr i-f icc icf ici ick ico icp icr ifc iff ifi ifo ifp ifr iic iif iii iio iip iir ikc ikf iki ikk iko ikr io- ioc iof ioi ioo iop ior ipc ipf ipi ipo ipp ipr ir- irc irf iri irk iro irp irr kcc kci kck kcp kcr kfc kff kfi kfo kic kif kii kik kio kip kir kkc kki kkk kkp kkr koc kof koi kok koo kop kor kpc kpf kpi kpk kpo kpp kpr krc krf kri krk kro krp krr o-i oc- occ ocf oci ock oco ocp ocr of- ofc off ofi ofo ofp ofr oic oif oii oik oio oip oir okc oki okk oko okp okr oo- ooc oof ooi ook ooo oop oor op- opc opf opi opk opo opp opr or- orc orf ori ork oro orp orr p-p pcc pcf pci pck pco pcp pcr pfc pff pfi pfk pfo pfp pfr pic pif pii pik pio pip pir pkc pkf pki pko pkp pkr poc pof poi pok poo pop por ppc ppf ppi ppk ppo ppp ppr prc prf pri prk pro prp prr rcc rcf rci rco rcp rcr rfc rff rfi rfk rfo rfp rfr ric rif rii rik rio rip rir rkc rkf rkk rko rkp roc rof roi rok roo rop ror rpc rpf rpi rpk rpo rpp rpr rrc rrf rri rrk rrp rrr