-er -ic c-- ccc cce ccf cci ccm ccp ccr ce- cec cee cef cei cem cep cer cfc cfe cff cfi cfm cfp cfr ci- cic cie cif cii cim cip cir cmc cme cmf cmi cmm cmp cmr cpc cpe cpf cpi cpm cpp cpr crc cre crf cri crm crp crr ec- ecc ece ecf eci ecm ecr eec eee eef eem eep eer ef- efc efe eff efi efm efp efr eic eie eif eii eim eip eir em- emc eme emf emi emm emp emr ep- epc epe epf epi epm epp epr erc ere erf eri erm erp err fcc fce fcf fci fcm fcp fcr fec fee fef fei fem fep fer ffc ffe fff ffi ffm ffp ffr fic fie fif fii fim fip fir fmc fme fmf fmi fmm fmp fmr fpc fpe fpi fpm fpp fpr frc fre frf fri frm frp frr i-f icc ice icf ici icm icp icr ie- iec iee ief iei iem iep ier ifc ife iff ifi ifm ifp ifr iic iie iif iii iim iip iir im- imc ime imf imi imm imp ipc ipe ipf ipi ipm ipp ipr ir- irc ire irf iri irm irp irr m-f m-r mc- mcc mce mcf mci mcm mcp mcr mec mee mef mei mem mep mer mfc mfe mff mfi mfm mfp mfr mi- mic mie mif mii mim mip mir mmc mme mmf mmi mmm mmp mmr mpc mpe mpf mpi mpm mpp mpr mrc mre mrf mri mrm mrp mrr p-p pcc pce pcf pci pcm pcp pcr pec pee pef pei pem pep per pfc pfe pff pfi pfm pfp pfr pic pie pif pii pim pip pir pmc pme pmf pmi pmm pmp pmr ppc ppe ppf ppi ppm ppp ppr prc pre prf pri prm prp prr rcc rce rcf rci rcm rcp rcr re- rec ree ref rei rem rep rer rfc rfe rff rfi rfm rfp rfr ric rie rif rii rim rip rir rmc rme rmf rmi rmm rmp rmr rpc rpe rpf rpi rpm rpp rpr rrc rrf rri rrm rrp rrr