-er -ji eee eef eem eer ees ef- efe eff efi efm efr efs eie eif eii eij eim eir eis ejf eji em- eme emf emi emm emr ems ere erf eri erm err ers es- ese esf esi esm esr ess fee fef fei fem fer fes ffe fff ffi ffm ffr ffs fie fif fii fij fim fir fis fji fjm fjs fme fmf fmi fmj fmm fmr fms fre frf fri frj frm frr frs fse fsf fsi fsj fsm fsr fss i-f ie- iee ief iei iej iem ier ies ife iff ifi ifm ifr ifs iie iif iii iij iim iir iis ije ijf iji ijm ijs im- ime imf imi imm ims ir- ire irf iri irj irm irr irs is- ise isf isi isj ism isr iss j-i jee jef jei jej jem jer jes jfe jff jfi jfj jfm jfr jfs jie jif jii jij jim jir jis jjf jjj jjr jjs jme jmf jmi jmj jmm jmr jms jrf jri jrm jrr jrs jse jsf jsi jsj jsm jsr jss m-f m-r mee mef mei mej mem mer mes mfe mff mfi mfj mfm mfr mfs mi- mie mif mii mij mim mir mis mje mjj mjm mjr mjs mme mmf mmi mmj mmm mmr mms mre mrf mri mrj mrm mrr mrs mse msf msi msj msm msr mss re- ree ref rei rem rer res rfe rff rfi rfj rfm rfr rfs rie rif rii rim rir ris rjf rjm rjr rme rmf rmi rmm rmr rms rrf rri rrm rrr rrs rse rsf rsi rsj rsm rsr rss se- see sef sei sej sem ser ses sfe sff sfi sfj sfm sfr sfs sie sif sii sij sim sir sis sje sjf sji sjj sjm sjr sjs sme smf smi smm smr sms sr- sre srf sri srj srm srr srs ss- sse ssf ssi ssj ssm ssr sss