-er -ic c-- ccc cce cci ccl ccr ccu ccx ce- cec cee cei cel cer ceu cex ci- cic cie cii cil cir ciu cix cl- clc cle cli cll clr clu clx crc cre cri crl crr cru crx cuc cue cui cul cur cuu cxc cxi cxl cxr cxx ec- ecc ece eci ecl ecr ecu ecx eec eee eel eer eex eic eie eii eil eir eiu eix elc ele eli ell elr elu elx erc ere eri erl err eru eu- euc eue eui eul eur eux ex- exc exe exi exl exr exu exx icc ice ici icl icr icu ie- iec iee iei iel ier iex iic iie iii iil iir iiu iix il- ilc ile ili ill ilr ilu ilx ir- irc ire iri irl irr iru irx iu- iuc iue iui iur ixc ixe ixi ixl lcc lce lci lcl lcr lcu lcx lec lee lei lel ler leu lex lic lie lii lil lir liu lix llc lle lli lll llr llu lrc lri lrr lru luc lue lui lul lur luu lux lxc lxi lxr lxx rcc rce rci rcl rcr rcu rcx re- rec ree rei rel rer reu rex ric rie rii ril rir rix rlc rle rli rll rlr rlu rrc rri rrl rrr rru ruc rue rui rur ruu rux rxr ucc uce uci ucl ucr ucu uec uee uei uel uer uic uie uii uil uir uiu ulc ule uli ull ulr ulu ur- urc ure uri url urr uru urx uuc uue uur uuu uxc uxr uxu xci xcl xcr xcx xee xel xer xeu xex xic xie xii xiu xix xli xlr xrc xrx xue xui xul xxi xxl xxx