-er -ic c-- ccc cce cci ccl ccr ccv ce- cec cee cei cel cer cev ci- cic cie cii cil cir civ cl- clc cle cli cll clr clv crc cre cri crl crr crv cvc cve cvi cvl cvr cvv ec- ecc ece eci ecl ecr ecv eec eee eel eer eev eic eie eii eil eir eiv elc ele eli ell elr elv erc ere eri erl err erv evc eve evi evl evr evv i-v icc ice ici icl icr icv ie- iec iee iei iel ier iev iic iie iii iil iir il- ilc ile ili ill ilr ilv ir- irc ire iri irl irr irv ivc ive ivi ivl ivr ivv lcc lce lci lcl lcr lcv lec lee lei lel ler lev lic lie lii lil lir liv llc lle lli lll llr llv lrc lri lrr lrv lvc lve lvi lvl lvr lvv rcc rce rci rcl rcr rcv re- rec ree rei rel rer rev ric rie rii ril rir riv rlc rle rli rll rlr rrc rri rrl rrr rvc rve rvi rvl rvr rvv v-e vcc vce vci vcl vcr vec vee vei vel ver vi- vic vie vii vil vir viv vl- vlc vle vll vlv vrc vre vri vrr vvc vvi vvr vvv