-er -up b-p b-u bbb bbe bbi bbm bbn bbp bbr bbu be- beb bee bei bem ben bep ber beu bi- bib bie bii bim bin bip bir biu bmb bme bmi bmm bmn bmp bmr bmu bnb bne bni bnn bnp bnr bnu bpb bpe bpi bpm bpn bpp bpr bpu brb bre bri brm brn brp brr bru bub bue bui bum bun bup bur buu ebb ebe ebi ebm ebn ebp ebr ebu eeb eee eem een eep eer eib eie eii eim ein eip eir eiu em- emb eme emi emm emn emp emr emu en- enb ene eni enm enn enp enr enu ep- epb epe epi epm epn epp epr epu erb ere eri erm ern erp err eru eu- eub eue eui eun eup eur ibb ibe ibi ibm ibn ibp ibr ibu ie- iee iei iem ien iep ier iib iie iii iim iin iip iir iiu im- imb ime imi imm imn imp imu in- inb ine ini inm inn inp inr inu ipb ipe ipi ipm ipn ipp ipr ipu ir- irb ire iri irm irn irp irr iru iu- iub iue iui ium iup iur m-r mbb mbe mbi mbm mbp mbr mbu meb mee mei mem men mep mer meu mi- mib mie mii mim min mip mir miu mmb mme mmi mmm mmn mmp mmr mmu mnb mne mni mnm mnn mnp mnr mnu mpb mpe mpi mpm mpn mpp mpr mpu mrb mre mri mrm mrn mrp mrr mru mub mue mui mum mun mup mur muu n-i nbb nbe nbi nbm nbn nbp nbr nbu ne- neb nee nei nem nen nep ner neu nib nie nii nim nin nip nir niu nmb nme nmi nmm nmn nmp nmr nmu nnb nne nni nnm nnn nnp nnu npb npe npi npm npn npp npr npu nrb nre nri nrm nrn nrp nrr nru nub nue nui num nun nup nur nuu p-p pbb pbe pbi pbm pbn pbp pbr pbu peb pee pei pem pen pep per peu pib pie pii pim pin pip pir piu pmb pme pmi pmm pmn pmp pmr pmu pn- pnb pne pni pnm pnn pnp pnr pnu ppb ppe ppi ppm ppn ppp ppr ppu prb pre pri prm prn prp prr pru pub pue pui pum pun pup pur puu rbb rbe rbi rbm rbn rbp rbr rbu re- reb ree rei rem ren rep rer reu rib rie rii rim rin rip rir rmb rme rmi rmm rmn rmp rmr rnb rni rnm rnn rnp rnr rnu rpb rpe rpi rpm rpn rpp rpr rpu rrb rri rrm rrn rrp rrr rru rub rue rui rum run rup rur ruu ubb ube ubi ubn ubp ubr ubu ueb uee uei uem uen uep uer uib uie uii uim uin uip uir uiu um- umb ume umi umm umn ump umr umu un- unb une uni unm unn unp unr unu up- upb upe upi upm upn upp upr upu ur- urb ure uri urm urn urp urr uru uue uum uun uur uuu