-ic -ol c-- ccc cce cci ccl cco ccx ce- cec cee cei cel ceo cex ci- cic cie cii cil cio cix cl- clc cle cli cll clo clx co- coc coe coi col coo cox cxc cxi cxl cxo cxx ec- ecc ece eci ecl eco ecx eec eee eel eeo eex eic eie eii eil eio eix elc ele eli ell elo elx eo- eoc eoe eoi eol eoo ex- exc exe exi exl exo exx icc ice ici icl ico ie- iec iee iei iel iex iic iie iii iil iio iix il- ilc ile ili ill ilo ilx io- ioc ioe ioi iol ioo ixc ixe ixi ixl lcc lce lci lcl lco lcx lec lee lei lel leo lex lic lie lii lil lio lix llc lle lli lll llo loc loe loi lol loo lox lxc lxi lxo lxx o-i oc- occ oci ocl oco ocx oec oee oei oel oeo oex oic oie oii oil oio olc ole oli oll olo oo- ooc ooi ool ooo oox ox- oxc oxi oxo oxx xci xcl xcx xee xel xex xic xie xii xio xix xli xoc xoi xoo xox xxi xxl xxo xxx