-er eee eem een eep eer em- eme emm emn emp emr en- ene enm enn enp enr ep- epe epm epn epp epr ere erm ern erp err m-r mee mem men mep mer mme mmm mmn mmp mmr mne mnm mnn mnp mnr mpe mpm mpn mpp mpr mre mrm mrn mrp mrr ne- nee nem nen nep ner nme nmm nmn nmp nmr nne nnm nnn nnp npe npm npn npp npr nre nrm nrn nrp nrr p-p pee pem pen pep per pme pmm pmn pmp pmr pn- pne pnm pnn pnp pnr ppe ppm ppn ppp ppr pre prm prn prp prr re- ree rem ren rep rer rme rmm rmn rmp rmr rnm rnn rnp rnr rpe rpm rpn rpp rpr rrm rrn rrp rrr