-er -ic c-- ccc ccd cce cci cck ccm ccn ccr cdc cdd cde cdi cdk cdm cdn cdr ce- cec ced cee cei cek cem cen cer ci- cic cid cie cii cik cim cin cir ckc ckd cki ckm cmc cmd cme cmi cmk cmm cmn cmr cn- cnc cnd cne cni cnm cnn cnr crc crd cre cri crk crm crn crr dcc dcd dce dci dck dcm dcn dcr ddc ddd dde ddi ddk ddm ddn ddr de- dec ded dee dei dek dem den der di- dic did die dii dik dim din dir dkc dke dki dkk dkm dkr dmc dmd dme dmi dmk dmm dmn dmr dnc dnd dne dni dnk dnm dnn dnr drc drd dre dri drk drm drn drr ec- ecc ecd ece eci eck ecm ecn ecr ed- edc edd ede edi edk edm edn edr eec eed eee eek eem een eer eic eid eie eii eik eim ein eir ekc ekd eke eki ekr em- emc emd eme emi emk emm emn emr en- enc end ene eni enk enm enn enr erc erd ere eri erk erm ern err i-d icc icd ice ici ick icm icn icr idc idd ide idi idk idm idn idr ie- iec ied iee iei iek iem ien ier iic iid iie iii iim iin iir ikc ike iki ikk ikr im- imc imd ime imi imm imn in- inc ind ine ini ink inm inn inr ir- irc ird ire iri irk irm irn irr kcc kcd kce kci kck kcm kcn kcr kdc kde kdk kdm kdr ke- kec ked kee kei kek kem ken ker kic kid kie kii kik kim kin kir kkc kke kki kkk kkm kkn kkr kmc kmd kme kmi kmk kmm kn- knc knd kne kni knk knm knn knr krc krd kri krk krn krr m-r mc- mcc mcd mce mci mck mcm mcn mcr mdc mdd mde mdi mdk mdm mdn mdr mec med mee mei mek mem men mer mi- mic mid mie mii mik mim min mir mkc mkd mke mkk mkm mkn mkr mmc mmd mme mmi mmk mmm mmn mmr mnc mne mni mnk mnm mnn mnr mrc mrd mre mri mrk mrm mrn mrr n-i ncc ncd nce nci nck ncm ncn ncr ndc ndd nde ndi ndk ndm ndn ndr ne- nec ned nee nei nek nem nen ner nic nid nie nii nik nim nin nir nkc nke nki nkk nkm nkn nkr nmc nmd nme nmi nmk nmm nmn nmr nnc nne nni nnk nnm nnn nrc nrd nre nri nrk nrm nrn nrr rcc rcd rce rci rcm rcn rcr rdc rdd rde rdi rdm rdn rdr re- rec red ree rei rek rem ren rer ric rid rie rii rik rim rin rir rkc rke rkk rkm rmc rmd rme rmi rmm rmn rmr rnc rnd rni rnm rnn rnr rrc rrd rri rrk rrm rrn rrr