-er -ic c-- ccc ccd cce ccf cci ccm ccr ccs cdc cdd cde cdf cdi cdm cdr cds ce- cec ced cee cef cei cem cer ces cfc cfd cfe cff cfi cfm cfr cfs ci- cic cid cie cif cii cim cir cis cmc cmd cme cmf cmi cmm cmr cms crc crd cre crf cri crm crr crs csc csd cse csf csi csm csr css dcc dcd dce dcf dci dcm dcr dcs ddc ddd dde ddf ddi ddm ddr dds de- dec ded dee def dei dem der des dfc dfd dfe dff dfi dfm dfr dfs di- dic did die dif dii dim dir dis dmc dmd dme dmf dmi dmm dmr dms drc drd dre dri drm drr drs dsc dsd dse dsf dsi dsm dsr dss ec- ecc ecd ece ecf eci ecm ecr ecs ed- edc edd ede edf edi edm edr eds eec eed eee eef eem eer ees ef- efc efd efe eff efi efm efr efs eic eid eie eif eii eim eir eis em- emc emd eme emf emi emm emr ems erc erd ere erf eri erm err ers es- esc esd ese esf esi esm esr ess fcc fcd fce fcf fci fcm fcr fcs fdc fdd fde fdf fdi fdm fdr fds fec fed fee fef fei fem fer fes ffc ffd ffe fff ffi ffm ffr ffs fic fid fie fif fii fim fir fis fmc fmd fme fmf fmi fmm fmr fms frc frd fre frf fri frm frr frs fsc fsd fse fsf fsi fsm fsr fss i-d i-f icc icd ice icf ici icm icr ics idc idd ide idf idi idm idr ids ie- iec ied iee ief iei iem ier ies ifc ifd ife iff ifi ifm ifr ifs iic iid iie iif iii iim iir iis im- imc imd ime imf imi imm ims ir- irc ird ire irf iri irm irr irs is- isc isd ise isf isi ism isr iss m-f m-r mc- mcc mcd mce mcf mci mcm mcr mcs mdc mdd mde mdf mdi mdm mdr mds mec med mee mef mei mem mer mes mfc mfd mfe mff mfi mfm mfr mfs mi- mic mid mie mif mii mim mir mis mmc mmd mme mmf mmi mmm mmr mms mrc mrd mre mrf mri mrm mrr mrs msc msd mse msf msi msm msr mss rcc rcd rce rcf rci rcm rcr rcs rdc rdd rde rdf rdi rdm rdr rds re- rec red ree ref rei rem rer res rfc rfd rfe rff rfi rfm rfr rfs ric rid rie rif rii rim rir ris rmc rmd rme rmf rmi rmm rmr rms rrc rrd rrf rri rrm rrr rrs rsc rsd rse rsf rsi rsm rsr rss scc scd sce scf sci scm scr scs sdc sdd sde sdf sdi sdm sdr sds se- sec sed see sef sei sem ser ses sfc sfd sfe sff sfi sfm sfr sfs sic sid sie sif sii sim sir sis smc smd sme smf smi smm smr sms sr- src srd sre srf sri srm srr srs ss- ssc ssd sse ssf ssi ssm ssr sss