-er b-u bbb bbd bbe bbi bbk bbm bbn bbr bbu bdb bdd bde bdi bdk bdm bdr bdu be- beb bed bee bei bek bem ben ber beu bi- bib bid bie bii bik bim bin bir biu bkb bke bkk bkm bkn bkr bmb bmd bme bmi bmk bmm bmn bmr bmu bnb bnd bne bni bnk bnn bnr bnu brb brd bre bri brk brm brn brr bru bub bud bue bui buk bum bun bur buu dbb dbd dbe dbi dbk dbm dbn dbr dbu ddb ddd dde ddi ddk ddm ddn ddr ddu de- deb ded dee dei dek dem den der deu di- dib did die dii dik dim din dir diu dkb dke dki dkk dkm dkr dku dmb dmd dme dmi dmk dmm dmn dmr dmu dnb dnd dne dni dnk dnm dnn dnr drb drd dre dri drk drm drn drr dru dub dud due dui duk dum dun dur ebb ebd ebe ebi ebk ebm ebn ebr ebu ed- edb edd ede edi edk edm edn edr edu eeb eed eee eek eem een eer eib eid eie eii eik eim ein eir eiu ekb ekd eke eki ekr eku em- emb emd eme emi emk emm emn emr emu en- enb end ene eni enk enm enn enr enu erb erd ere eri erk erm ern err eru eu- eub eud eue eui eun eur i-d ibb ibd ibe ibi ibk ibm ibn ibr ibu idb idd ide idi idk idm idn idr idu ie- ied iee iei iek iem ien ier iib iid iie iii iim iin iir iiu ikb ike iki ikk ikr iku im- imb imd ime imi imm imn imu in- inb ind ine ini ink inm inn inr inu ir- irb ird ire iri irk irm irn irr iru iu- iub iud iue iui ium iur kbb kbd kbe kbi kbk kbm kbn kbr kbu kdb kde kdk kdm kdr kdu ke- keb ked kee kei kek kem ken ker kib kid kie kii kik kim kin kir kiu kkb kke kki kkk kkm kkn kkr kku kmb kmd kme kmi kmk kmm kmu kn- knd kne kni knk knm knn knr knu krd kri krk krn krr kru kub kud kue kui kuk kum kun kur kuu m-r mbb mbd mbe mbi mbk mbm mbr mbu mdb mdd mde mdi mdk mdm mdn mdr mdu meb med mee mei mek mem men mer meu mi- mib mid mie mii mik mim min mir miu mkb mkd mke mkk mkm mkn mkr mku mmb mmd mme mmi mmk mmm mmn mmr mmu mnb mne mni mnk mnm mnn mnr mnu mrb mrd mre mri mrk mrm mrn mrr mru mub mud mue mui muk mum mun mur muu n-i nbb nbd nbe nbi nbk nbm nbn nbr nbu ndb ndd nde ndi ndk ndm ndn ndr ndu ne- neb ned nee nei nek nem nen ner neu nib nid nie nii nik nim nin nir niu nke nki nkk nkm nkn nkr nku nmb nmd nme nmi nmk nmm nmn nmr nmu nnb nne nni nnk nnm nnn nnu nrb nrd nre nri nrk nrm nrn nrr nru nub nud nue nui nuk num nun nur nuu rbb rbd rbe rbi rbk rbm rbn rbr rbu rdb rdd rde rdi rdm rdn rdr rdu re- reb red ree rei rek rem ren rer reu rib rid rie rii rik rim rin rir rkb rke rkk rkm rku rmb rmd rme rmi rmm rmn rmr rnb rnd rni rnm rnn rnr rnu rrb rrd rri rrk rrm rrn rrr rru rub rud rue rui ruk rum run rur ruu ubb ube ubi ubk ubn ubr ubu udb udd ude udi udk udm udn udr udu ueb ued uee uei uem uen uer uib uid uie uii uim uin uir uiu ukb uke uki ukk ukn ukr uku um- umb umd ume umi umm umn umr umu un- unb und une uni unk unm unn unr unu ur- urb urd ure uri urk urm urn urr uru uue uum uun uur uuu