-er -ic c-- ccc cce cci ccm ccr cct ce- cec cee cei cem cer cet ci- cic cie cii cim cir cit cmc cme cmi cmm cmr cmt crc cre cri crm crr crt ctc cte cti ctm ctr ctt ec- ecc ece eci ecm ecr ect eec eee eem eer eet eic eie eii eim eir eit em- emc eme emi emm emr emt erc ere eri erm err ert etc ete eti etm etr ett icc ice ici icm icr ict ie- iec iee iei iem ier iet iic iie iii iim iir iit im- imc ime imi imm imt ir- irc ire iri irm irr irt itc ite iti itm itt m-r mc- mcc mce mci mcm mcr mct mec mee mei mem mer met mi- mic mie mii mim mir mit mmc mme mmi mmm mmr mmt mrc mre mri mrm mrr mrt mtc mte mti mtm mtr mtt rcc rce rci rcm rcr rct re- rec ree rei rem rer ret ric rie rii rim rir rit rmc rme rmi rmm rmr rmt rrc rri rrm rrr rrt rtc rte rti rtm rtr rtt tcc tce tci tcm tcr tct te- tec tee tei tem ter tet tic tie tii tim tir tit tmc tme tmi tmm tmr tmt trc tre tri trm trr trt ttc tte tti ttm ttr ttt