-ic c-- ccc cce cci cco ccp ce- cec cee cei ceo cep ci- cic cie cii cio cip co- coc coe coi coo cop cpc cpe cpi cpo cpp ec- ecc ece eci eco eec eee eeo eep eic eie eii eio eip eo- eoc eoe eoi eoo eop ep- epc epe epi epo epp icc ice ici ico icp ie- iec iee iei iep iic iie iii iio iip io- ioc ioe ioi ioo iop ipc ipe ipi ipo ipp o-i oc- occ oci oco ocp oec oee oei oeo oep oic oie oii oio oip oo- ooc ooi ooo oop op- opc ope opi opo opp p-p pcc pce pci pco pcp pec pee pei peo pep pic pie pii pio pip poc poe poi poo pop ppc ppe ppi ppo ppp