-ic c-- ccc cce ccf cci cco ce- cec cee cef cei ceo cfc cfe cff cfi cfo ci- cic cie cif cii cio co- coc coe cof coi coo ec- ecc ece ecf eci eco eec eee eef eeo ef- efc efe eff efi efo eic eie eif eii eio eo- eoc eoe eof eoi eoo fcc fce fcf fci fco fec fee fef fei feo ffc ffe fff ffi ffo fic fie fif fii foc foe fof foi foo i-f icc ice icf ici ico ie- iec iee ief iei ifc ife iff ifi ifo iic iie iif iii iio io- ioc ioe iof ioi ioo o-i oc- occ ocf oci oco oec oee oef oei oeo of- ofc ofe off ofi ofo oic oie oif oii oio oo- ooc oof ooi ooo