-er -ic c-- ccc ccd cce cci cck ccm ccr cdc cdd cde cdi cdk cdm cdr ce- cec ced cee cei cek cem cer ci- cic cid cie cii cik cim cir ckc ckd cki ckm cmc cmd cme cmi cmk cmm cmr crc crd cre cri crk crm crr dcc dcd dce dci dck dcm dcr ddc ddd dde ddi ddk ddm ddr de- dec ded dee dei dek dem der di- dic did die dii dik dim dir dkc dke dki dkk dkm dkr dmc dmd dme dmi dmk dmm dmr drc drd dre dri drk drm drr ec- ecc ecd ece eci eck ecm ecr ed- edc edd ede edi edk edm edr eec eed eee eek eem eer eic eid eie eii eik eim eir ekc ekd eke eki ekr em- emc emd eme emi emk emm emr erc erd ere eri erk erm err i-d icc icd ice ici ick icm icr idc idd ide idi idk idm idr ie- iec ied iee iei iek iem ier iic iid iie iii iim iir ikc ike iki ikk ikr im- imc imd ime imi imm ir- irc ird ire iri irk irm irr kcc kcd kce kci kck kcm kcr kdc kde kdk kdm kdr ke- kec ked kee kei kek kem ker kic kid kie kii kik kim kir kkc kke kki kkk kkm kkr kmc kmd kme kmi kmk kmm krc krd kri krk krr m-r mc- mcc mcd mce mci mck mcm mcr mdc mdd mde mdi mdk mdm mdr mec med mee mei mek mem mer mi- mic mid mie mii mik mim mir mkc mkd mke mkk mkm mkr mmc mmd mme mmi mmk mmm mmr mrc mrd mre mri mrk mrm mrr rcc rcd rce rci rcm rcr rdc rdd rde rdi rdm rdr re- rec red ree rei rek rem rer ric rid rie rii rik rim rir rkc rke rkk rkm rmc rmd rme rmi rmm rmr rrc rrd rri rrk rrm rrr