-er -ic c-- ccc ccd cce cci cck ccm ccn ccr ccs cdc cdd cde cdi cdk cdm cdn cdr cds ce- cec ced cee cei cek cem cen cer ces ci- cic cid cie cii cik cim cin cir cis ckc ckd cki ckm cks cmc cmd cme cmi cmk cmm cmn cmr cms cn- cnc cnd cne cni cnm cnn cnr cns crc crd cre cri crk crm crn crr crs csc csd cse csi csk csm csn csr css dcc dcd dce dci dck dcm dcn dcr dcs ddc ddd dde ddi ddk ddm ddn ddr dds de- dec ded dee dei dek dem den der des di- dic did die dii dik dim din dir dis dkc dke dki dkk dkm dkr dks dmc dmd dme dmi dmk dmm dmn dmr dms dnc dnd dne dni dnk dnm dnn dnr dns drc drd dre dri drk drm drn drr drs dsc dsd dse dsi dsk dsm dsn dsr dss ec- ecc ecd ece eci eck ecm ecn ecr ecs ed- edc edd ede edi edk edm edn edr eds eec eed eee eek eem een eer ees eic eid eie eii eik eim ein eir eis ekc ekd eke eki ekr eks em- emc emd eme emi emk emm emn emr ems en- enc end ene eni enk enm enn enr ens erc erd ere eri erk erm ern err ers es- esc esd ese esi esk esm esn esr ess i-d icc icd ice ici ick icm icn icr ics idc idd ide idi idk idm idn idr ids ie- iec ied iee iei iek iem ien ier ies iic iid iie iii iim iin iir iis ikc ike iki ikk ikr iks im- imc imd ime imi imm imn ims in- inc ind ine ini ink inm inn inr ins ir- irc ird ire iri irk irm irn irr irs is- isc isd ise isi isk ism isn isr iss kcc kcd kce kci kck kcm kcn kcr kcs kdc kde kdk kdm kdr kds ke- kec ked kee kei kek kem ken ker kes kic kid kie kii kik kim kin kir kis kkc kke kki kkk kkm kkn kkr kks kmc kmd kme kmi kmk kmm kms kn- knc knd kne kni knk knm knn knr krc krd kri krk krn krr krs ksc ksd kse ksi ksk ksm ksn ksr kss m-r mc- mcc mcd mce mci mck mcm mcn mcr mcs mdc mdd mde mdi mdk mdm mdn mdr mds mec med mee mei mek mem men mer mes mi- mic mid mie mii mik mim min mir mis mkc mkd mke mkk mkm mkn mkr mks mmc mmd mme mmi mmk mmm mmn mmr mms mnc mne mni mnk mnm mnn mnr mns mrc mrd mre mri mrk mrm mrn mrr mrs msc msd mse msi msk msm msn msr mss n-i ncc ncd nce nci nck ncm ncn ncr ncs ndc ndd nde ndi ndk ndm ndn ndr nds ne- nec ned nee nei nek nem nen ner nes nic nid nie nii nik nim nin nir nis nkc nke nki nkk nkm nkn nkr nks nmc nmd nme nmi nmk nmm nmn nmr nms nnc nne nni nnk nnm nnn nns nrc nrd nre nri nrk nrm nrn nrr nrs nsc nsd nse nsi nsk nsm nsn nsr nss rcc rcd rce rci rcm rcn rcr rcs rdc rdd rde rdi rdm rdn rdr rds re- rec red ree rei rek rem ren rer res ric rid rie rii rik rim rin rir ris rkc rke rkk rkm rks rmc rmd rme rmi rmm rmn rmr rms rnc rnd rni rnm rnn rnr rns rrc rrd rri rrk rrm rrn rrr rrs rsc rsd rse rsi rsk rsm rsn rsr rss scc scd sce sci sck scm scn scr scs sdc sdd sde sdi sdk sdm sdn sdr sds se- sec sed see sei sek sem sen ser ses sic sid sie sii sik sim sin sir sis sk- skc skd ske ski skk skm skr sks smc smd sme smi smk smm smn smr sms snc snd sne sni snk snm snn snr sns sr- src srd sre sri srk srm srn srr srs ss- ssc ssd sse ssi ssk ssm ssn ssr sss