-er -ic c-- ccc cce cci ccr ccu ccv ccx ce- cec cee cei cer ceu cev cex ci- cic cie cii cir ciu civ cix crc cre cri crr cru crv crx cuc cue cui cur cuu cuv cvc cve cvi cvr cvu cvv cvx cxc cxi cxr cxv cxx ec- ecc ece eci ecr ecu ecv ecx eec eee eer eev eex eic eie eii eir eiu eiv eix erc ere eri err eru erv eu- euc eue eui eur euv eux evc eve evi evr evv ex- exc exe exi exr exu exx i-v icc ice ici icr icu icv ie- iec iee iei ier iev iex iic iie iii iir iiu iix ir- irc ire iri irr iru irv irx iu- iuc iue iui iur ivc ive ivi ivr ivu ivv ivx ixc ixe ixi rcc rce rci rcr rcu rcv rcx re- rec ree rei rer reu rev rex ric rie rii rir riv rix rrc rri rrr rru ruc rue rui rur ruu ruv rux rvc rve rvi rvr rvu rvv rxr ucc uce uci ucr ucu ucv uec uee uei uer uic uie uii uir uiu ur- urc ure uri urr uru urx uuc uue uur uuu uvc uve uvu uvv uxc uxr uxu v-e vcc vce vci vcr vcu vcx vec vee vei ver veu vex vi- vic vie vii vir viu viv vix vrc vre vri vrr vru vue vur vuv vvc vvi vvr vvv vxr vxv xci xcr xcv xcx xee xer xeu xev xex xic xie xii xiu xiv xix xrc xrx xue xui xuv xvi xxi xxv xxx