-ic c-- ccc ccf cci cck cco ccp cfc cff cfi cfk cfo cfp ci- cic cif cii cik cio cip ckc cki cko co- coc cof coi cok coo cop cpc cpf cpi cpk cpo cpp fcc fcf fci fck fco fcp ffc fff ffi ffk ffo ffp fic fif fii fik fip fkc fkf fki fkk fkp foc fof foi fok foo fop fpc fpi fpk fpo fpp i-f icc icf ici ick ico icp ifc iff ifi ifo ifp iic iif iii iio iip ikc ikf iki ikk iko io- ioc iof ioi ioo iop ipc ipf ipi ipo ipp kcc kci kck kcp kfc kff kfi kfo kic kif kii kik kio kip kkc kki kkk kkp koc kof koi kok koo kop kpc kpf kpi kpk kpo kpp o-i oc- occ ocf oci ock oco ocp of- ofc off ofi ofo ofp oic oif oii oik oio oip okc oki okk oko okp oo- ooc oof ooi ook ooo oop op- opc opf opi opk opo opp p-p pcc pcf pci pck pco pcp pfc pff pfi pfk pfo pfp pic pif pii pik pio pip pkc pkf pki pko pkp poc pof poi pok poo pop ppc ppf ppi ppk ppo ppp