b-u bbb bbd bbe bbm bbn bbo bbs bbt bbu bdb bdd bde bdm bdo bds bdt bdu be- beb bed bee bem ben beo bes bet beu bmb bmd bme bmm bmn bmo bms bmt bmu bnb bnd bne bnn bno bns bnt bnu bob bod boe bom bon boo bos bot bou bsb bsd bse bsm bsn bso bss bst bsu btb btd bte btm btn bto bts btt btu bub bud bue bum bun buo bus but buu dbb dbd dbe dbm dbn dbo dbs dbt dbu ddb ddd dde ddm ddn ddo dds ddt ddu de- deb ded dee dem den deo des det deu dmb dmd dme dmm dmn dmo dms dmt dmu dnb dnd dne dnm dnn dno dns dnt dob dod doe dom don doo dos dot dou dsb dsd dse dsm dsn dso dss dst dsu dtb dtd dte dtm dtn dto dts dtt dtu dub dud due dum dun duo dus dut ebb ebd ebe ebm ebn ebo ebs ebt ebu ed- edb edd ede edm edn edo eds edt edu eeb eed eee eem een eeo ees eet em- emb emd eme emm emn emo ems emt emu en- enb end ene enm enn eno ens ent enu eo- eob eod eoe eom eon eoo eos eot eou es- esb esd ese esm esn eso ess est esu etb etd ete etm etn eto ets ett etu eu- eub eud eue eun eus eut m-o mbb mbd mbe mbm mbo mbs mbt mbu mdb mdd mde mdm mdn mdo mds mdt mdu meb med mee mem men meo mes met meu mmb mmd mme mmm mmn mmo mms mmt mmu mnb mne mnm mnn mno mns mnt mnu mob mod moe mom mon moo mos mot mou msb msd mse msm msn mso mss mst msu mtb mtd mte mtm mtn mto mts mtt mtu mub mud mue mum mun mus mut muu nbb nbd nbe nbm nbn nbo nbs nbt nbu ndb ndd nde ndm ndn ndo nds ndt ndu ne- neb ned nee nem nen neo nes net neu nmb nmd nme nmm nmn nmo nms nmt nmu nnb nne nnm nnn nno nns nnt nnu no- nob nod noe nom non noo nos not nou nsb nsd nse nsm nsn nso nss nst nsu ntb ntd nte ntm ntn nto nts ntt ntu nub nud nue num nun nuo nus nut nuu ob- obb obd obe obm obn obo obs obt obu odb odd ode odm odn odo ods odt odu oeb oed oee oem oen oeo oes oet om- omb omd ome omm omn omo oms omt omu on- onb ond one onn ono ons ont onu oo- oob ood oom oon ooo oos oot os- osb osd ose osm osn oso oss ost osu ot- otb otd ote otm otn oto ots ott otu ou- oud oue oum oun ouo ous out sbb sbd sbe sbm sbn sbo sbs sbt sbu sdb sdd sde sdm sdn sdo sds sdt sdu se- seb sed see sem sen seo ses set seu smb smd sme smm smn smo sms smt smu snb snd sne snm snn sno sns snt snu sob sod soe som son soo sos sot sou ss- ssb ssd sse ssm ssn sso sss sst ssu stb std ste stm stn sto sts stt stu sub sud sue sum sun suo sus sut suu tbb tbd tbe tbm tbn tbo tbs tbt tbu tdb tdd tde tdm tdn tdo tds tdt tdu te- teb ted tee tem ten teo tes tet teu tmb tmd tme tmm tmn tmo tms tmt tmu tnb tnd tne tnm tnn tno tns tnt to- tob tod toe tom ton too tos tot tou tsb tsd tse tsm tsn tso tss tst tsu ttb ttd tte ttm ttn tto tts ttt ttu tub tud tue tum tun tuo tus tut tuu ubb ube ubn ubo ubs ubt ubu udb udd ude udm udn udo uds udt udu ueb ued uee uem uen ues uet um- umb umd ume umm umn umo ums umt umu un- unb und une unm unn uno uns unt unu uob uod uoe uom uon uoo uos uot usb usd use usm usn uso uss ust usu utb utd ute utm utn uto uts utt utu uue uum uun uus uut uuu