-er -ic c-- ccc ccd cce cci ccl ccm ccr ccs cdc cdd cde cdi cdl cdm cdr cds ce- cec ced cee cei cel cem cer ces ci- cic cid cie cii cil cim cir cis cl- clc cld cle cli cll clm clr cls cmc cmd cme cmi cml cmm cmr cms crc crd cre cri crl crm crr crs csc csd cse csi csl csm csr css dcc dcd dce dci dcl dcm dcr dcs ddc ddd dde ddi ddl ddm ddr dds de- dec ded dee dei del dem der des di- dic did die dii dil dim dir dis dl- dlc dld dle dli dll dlm dlr dls dmc dmd dme dmi dml dmm dmr dms drc drd dre dri drl drm drr drs dsc dsd dse dsi dsl dsm dsr dss ec- ecc ecd ece eci ecl ecm ecr ecs ed- edc edd ede edi edl edm edr eds eec eed eee eel eem eer ees eic eid eie eii eil eim eir eis elc eld ele eli ell elm elr els em- emc emd eme emi eml emm emr ems erc erd ere eri erl erm err ers es- esc esd ese esi esl esm esr ess i-d icc icd ice ici icl icm icr ics idc idd ide idi idl idm idr ids ie- iec ied iee iei iel iem ier ies iic iid iie iii iil iim iir iis il- ilc ild ile ili ill ilm ilr ils im- imc imd ime imi iml imm ims ir- irc ird ire iri irl irm irr irs is- isc isd ise isi isl ism isr iss lcc lcd lce lci lcl lcm lcr lcs ldc ldd lde ldi ldl ldm ldr lds lec led lee lei lel lem ler les lic lid lie lii lil lim lir lis llc lld lle lli lll llm llr lls lmc lmd lme lmi lml lmm lmr lms lrc lrd lri lrm lrr lrs lsc lsd lse lsi lsl lsm lsr lss m-r mc- mcc mcd mce mci mcl mcm mcr mcs mdc mdd mde mdi mdl mdm mdr mds mec med mee mei mel mem mer mes mi- mic mid mie mii mil mim mir mis mlc mld mle mli mll mlm mlr mls mmc mmd mme mmi mml mmm mmr mms mrc mrd mre mri mrl mrm mrr mrs msc msd mse msi msl msm msr mss rcc rcd rce rci rcl rcm rcr rcs rdc rdd rde rdi rdl rdm rdr rds re- rec red ree rei rel rem rer res ric rid rie rii ril rim rir ris rlc rld rle rli rll rlm rlr rls rmc rmd rme rmi rml rmm rmr rms rrc rrd rri rrl rrm rrr rrs rsc rsd rse rsi rsl rsm rsr rss scc scd sce sci scl scm scr scs sdc sdd sde sdi sdl sdm sdr sds se- sec sed see sei sel sem ser ses sic sid sie sii sil sim sir sis slc sld sle sli sll slm slr sls smc smd sme smi sml smm smr sms sr- src srd sre sri srl srm srr srs ss- ssc ssd sse ssi ssl ssm ssr sss