-er -up eee eef eek een eep eer ees ef- efe eff efi efp efr efs eie eif eii eik ein eip eir eis eiu eke ekf eki ekp ekr eks eku en- ene enf eni enk enn enp enr ens enu ep- epe epf epi epn epp epr eps epu ere erf eri erk ern erp err ers eru es- ese esf esi esk esn esp esr ess esu eu- eue euf eui eun eup eur eus fee fef fei fek fen fep fer fes feu ffe fff ffi ffk ffn ffp ffr ffs ffu fie fif fii fik fin fip fir fis fiu fkf fki fkk fkp fne fnf fni fnk fnn fnp fnr fns fnu fpe fpi fpk fpn fpp fpr fps fpu fre frf fri frk frn frp frr frs fru fse fsf fsi fsk fsn fsp fsr fss fsu fue fuf fui fuk fun fup fur fus fuu i-f ie- iee ief iei iek ien iep ier ies ife iff ifi ifn ifp ifr ifs ifu iie iif iii iin iip iir iis iiu ike ikf iki ikk ikr iks iku in- ine inf ini ink inn inp inr ins inu ipe ipf ipi ipn ipp ipr ips ipu ir- ire irf iri irk irn irp irr irs iru is- ise isf isi isk isn isp isr iss isu iu- iue iui iup iur ius ke- kee kef kei kek ken kep ker kes kff kfi kfs kfu kie kif kii kik kin kip kir kis kiu kke kki kkk kkn kkp kkr kks kku kn- kne knf kni knk knn knp knr knu kpe kpf kpi kpk kpn kpp kpr kps kpu krf kri krk krn krp krr krs kru kse ksf ksi ksk ksn ksp ksr kss ksu kue kui kuk kun kup kur kus kuu n-i ne- nee nef nei nek nen nep ner nes neu nfe nff nfi nfk nfn nfp nfr nfs nfu nie nif nii nik nin nip nir nis niu nke nkf nki nkk nkn nkp nkr nks nku nne nnf nni nnk nnn nnp nns nnu npe npf npi npn npp npr nps npu nre nrf nri nrk nrn nrp nrr nrs nru nse nsf nsi nsk nsn nsp nsr nss nsu nue nui nuk nun nup nur nus nuu p-p pee pef pei pek pen pep per pes peu pfe pff pfi pfk pfn pfp pfr pfs pfu pie pif pii pik pin pip pir pis piu pke pkf pki pkn pkp pkr pks pku pn- pne pnf pni pnk pnn pnp pnr pns pnu ppe ppf ppi ppk ppn ppp ppr pps ppu pre prf pri prk prn prp prr prs pru ps- pse psf psi psk psn psp psr pss psu pue puf pui puk pun pup pur pus puu re- ree ref rei rek ren rep rer res reu rfe rff rfi rfk rfn rfp rfr rfs rfu rie rif rii rik rin rip rir ris rke rkf rkk rkp rks rku rni rnn rnp rnr rns rnu rpe rpf rpi rpk rpn rpp rpr rps rpu rrf rri rrk rrn rrp rrr rrs rru rse rsf rsi rsk rsn rsp rsr rss rsu rue ruf rui ruk run rup rur rus ruu se- see sef sei sek sen sep ser ses seu sfe sff sfi sfk sfn sfp sfr sfs sfu sie sif sii sik sin sip sir sis siu sk- ske skf ski skk skp skr sks sku sne snf sni snk snn snp snr sns snu spe spf spi spk spn spp spr sps spu sr- sre srf sri srk srn srp srr srs ss- sse ssf ssi ssk ssn ssp ssr sss ssu sue suf sui suk sun sup sur sus suu uee uef uei uen uep uer ues ufe uff ufi ufn ufp ufr ufs ufu uie uif uii uin uip uir uis uiu uke ukf uki ukk ukn ukp ukr uku un- une unf uni unk unn unp unr uns unu up- upe upf upi upk upn upp upr ups upu ur- ure urf uri urk urn urp urr urs uru use usf usi usk usn usp usr uss usu uue uun uur uus uuu