-er -ic c-- ccc cce ccf cci ccm cco ccr ce- cec cee cef cei cem ceo cer cfc cfe cff cfi cfm cfo cfr ci- cic cie cif cii cim cio cir cmc cme cmf cmi cmm cmo cmr co- coc coe cof coi com coo cor crc cre crf cri crm cro crr ec- ecc ece ecf eci ecm eco ecr eec eee eef eem eeo eer ef- efc efe eff efi efm efo efr eic eie eif eii eim eio eir em- emc eme emf emi emm emo emr eo- eoc eoe eof eoi eom eoo eor erc ere erf eri erm ero err fcc fce fcf fci fcm fco fcr fec fee fef fei fem feo fer ffc ffe fff ffi ffm ffo ffr fic fie fif fii fim fir fmc fme fmf fmi fmm fmo fmr foc foe fof foi fom foo for frc fre frf fri frm fro frr i-f icc ice icf ici icm ico icr ie- iec iee ief iei iem ier ifc ife iff ifi ifm ifo ifr iic iie iif iii iim iio iir im- imc ime imf imi imm imo io- ioc ioe iof ioi iom ioo ior ir- irc ire irf iri irm iro irr m-f m-o m-r mc- mcc mce mcf mci mcm mco mcr mec mee mef mei mem meo mer mfc mfe mff mfi mfm mfo mfr mi- mic mie mif mii mim mio mir mmc mme mmf mmi mmm mmo mmr moc moe mof moi mom moo mor mrc mre mrf mri mrm mro mrr o-i oc- occ ocf oci ocm oco ocr oec oee oef oei oem oeo oer of- ofc ofe off ofi ofm ofo ofr oic oie oif oii oim oio oir om- omc ome omf omi omm omo omr oo- ooc oof ooi oom ooo oor or- orc ore orf ori orm oro orr rcc rce rcf rci rcm rco rcr re- rec ree ref rei rem reo rer rfc rfe rff rfi rfm rfo rfr ric rie rif rii rim rio rir rmc rme rmf rmi rmm rmo rmr roc roe rof roi rom roo ror rrc rrf rri rrm rrr