-ic -ol c-- ccc ccd cce cci ccl cco ccx cdc cdd cde cdi cdl cdo cdx ce- cec ced cee cei cel ceo cex ci- cic cid cie cii cil cio cix cl- clc cld cle cli cll clo clx co- coc cod coe coi col coo cox cxc cxi cxl cxo cxx dcc dcd dce dci dcl dco dcx ddc ddd dde ddi ddl ddo ddx de- dec ded dee dei del deo dex di- dic did die dii dil dio dix dl- dlc dld dle dli dll dlo dlx doc dod doe doi dol doo dox dxc dxd dxi dxl dxo dxx ec- ecc ecd ece eci ecl eco ecx ed- edc edd ede edi edl edo edx eec eed eee eel eeo eex eic eid eie eii eil eio eix elc eld ele eli ell elo elx eo- eoc eod eoe eoi eol eoo ex- exc exd exe exi exl exo exx i-d icc icd ice ici icl ico idc idd ide idi idl ido idx ie- iec ied iee iei iel iex iic iid iie iii iil iio iix il- ilc ild ile ili ill ilo ilx io- ioc iod ioe ioi iol ioo ixc ixe ixi ixl lcc lcd lce lci lcl lco lcx ldc ldd lde ldi ldl ldo lec led lee lei lel leo lex lic lid lie lii lil lio lix llc lld lle lli lll llo loc lod loe loi lol loo lox lxc lxd lxi lxo lxx o-i oc- occ ocd oci ocl oco ocx odc odd ode odi odl odo oec oed oee oei oel oeo oex oic oid oie oii oil oio olc old ole oli oll olo oo- ooc ood ooi ool ooo oox ox- oxc oxi oxo oxx xcd xci xcl xcx xdc xde xdi xed xee xel xex xic xie xii xio xix xld xli xoc xod xoi xoo xox xxi xxl xxo xxx