-er -ic c-- ccc cce ccf cci ccm cco ccp ccr ce- cec cee cef cei cem ceo cep cer cfc cfe cff cfi cfm cfo cfp cfr ci- cic cie cif cii cim cio cip cir cmc cme cmf cmi cmm cmo cmp cmr co- coc coe cof coi com coo cop cor cpc cpe cpf cpi cpm cpo cpp cpr crc cre crf cri crm cro crp crr ec- ecc ece ecf eci ecm eco ecr eec eee eef eem eeo eep eer ef- efc efe eff efi efm efo efp efr eic eie eif eii eim eio eip eir em- emc eme emf emi emm emo emp emr eo- eoc eoe eof eoi eom eoo eop eor ep- epc epe epf epi epm epo epp epr erc ere erf eri erm ero erp err fcc fce fcf fci fcm fco fcp fcr fec fee fef fei fem feo fep fer ffc ffe fff ffi ffm ffo ffp ffr fic fie fif fii fim fip fir fmc fme fmf fmi fmm fmo fmp fmr foc foe fof foi fom foo fop for fpc fpe fpi fpm fpo fpp fpr frc fre frf fri frm fro frp frr i-f icc ice icf ici icm ico icp icr ie- iec iee ief iei iem iep ier ifc ife iff ifi ifm ifo ifp ifr iic iie iif iii iim iio iip iir im- imc ime imf imi imm imo imp io- ioc ioe iof ioi iom ioo iop ior ipc ipe ipf ipi ipm ipo ipp ipr ir- irc ire irf iri irm iro irp irr m-f m-o m-r mc- mcc mce mcf mci mcm mco mcp mcr mec mee mef mei mem meo mep mer mfc mfe mff mfi mfm mfo mfp mfr mi- mic mie mif mii mim mio mip mir mmc mme mmf mmi mmm mmo mmp mmr moc moe mof moi mom moo mop mor mpc mpe mpf mpi mpm mpo mpp mpr mrc mre mrf mri mrm mro mrp mrr o-i oc- occ ocf oci ocm oco ocp ocr oec oee oef oei oem oeo oep oer of- ofc ofe off ofi ofm ofo ofp ofr oic oie oif oii oim oio oip oir om- omc ome omf omi omm omo omp omr oo- ooc oof ooi oom ooo oop oor op- opc ope opf opi opm opo opp opr or- orc ore orf ori orm oro orp orr p-p pcc pce pcf pci pcm pco pcp pcr pec pee pef pei pem peo pep per pfc pfe pff pfi pfm pfo pfp pfr pic pie pif pii pim pio pip pir pmc pme pmf pmi pmm pmo pmp pmr poc poe pof poi pom poo pop por ppc ppe ppf ppi ppm ppo ppp ppr prc pre prf pri prm pro prp prr rcc rce rcf rci rcm rco rcp rcr re- rec ree ref rei rem reo rep rer rfc rfe rff rfi rfm rfo rfp rfr ric rie rif rii rim rio rip rir rmc rme rmf rmi rmm rmo rmp rmr roc roe rof roi rom roo rop ror rpc rpe rpf rpi rpm rpo rpp rpr rrc rrf rri rrm rrp rrr