-ic c-- ccc cci cck cco ccp ci- cic cii cik cio cip ckc cki cko cky co- coc coi cok coo cop coy cpc cpi cpk cpo cpp cyc cyk cyo cyp icc ici ick ico icp icy iic iii iio iip ikc iki ikk iko io- ioc ioi ioo iop ipc ipi ipo ipp ipy iyc iyo iyy kcc kci kck kcp kic kii kik kio kip kkc kki kkk kkp kky koc koi kok koo kop koy kpc kpi kpk kpo kpp kyc kyo kyp o-i oc- occ oci ock oco ocp oic oii oik oio oip okc oki okk oko okp oo- ooc ooi ook ooo oop op- opc opi opk opo opp opy oyi oyo p-p pcc pci pck pco pcp pic pii pik pio pip pkc pki pko pkp pky poc poi pok poo pop poy ppc ppi ppk ppo ppp py- pyc pyk pyo ycc yci yco ycp ycy yii yio yip yki ykk yoc yoi yok yoo yop yoy ypo yyc yyy