-ic c-- ccc cce cci cco ccv ccx ce- cec cee cei ceo cev cex ci- cic cie cii cio civ cix co- coc coe coi coo cov cox cvc cve cvi cvo cvv cvx cxc cxi cxo cxv cxx ec- ecc ece eci eco ecv ecx eec eee eeo eev eex eic eie eii eio eiv eix eo- eoc eoe eoi eoo evc eve evi evo evv ex- exc exe exi exo exx i-v icc ice ici ico icv ie- iec iee iei iev iex iic iie iii iio iix io- ioc ioe ioi ioo iov ivc ive ivi ivo ivv ivx ixc ixe ixi o-i oc- occ oci oco ocv ocx oec oee oei oeo oex oic oie oii oio oiv oo- ooc ooi ooo oov oox ov- ovc ove ovi ovo ovv ox- oxc oxi oxo oxx v-e vcc vce vci vco vcx vec vee vei veo vex vi- vic vie vii vio viv vix voc voe voi voo vov vox vvc vvi vvo vvv vxv xci xcv xcx xee xev xex xic xie xii xio xiv xix xoc xoi xoo xov xox xvi xxi xxo xxv xxx