b-u bbb bbc bbd bbe bbm bbn bbo bbt bbu bcb bcc bcd bce bcm bcn bco bct bcu bdb bdc bdd bde bdm bdo bdt bdu be- beb bec bed bee bem ben beo bet beu bmb bmc bmd bme bmm bmn bmo bmt bmu bnb bnc bnd bne bnn bno bnt bnu bob boc bod boe bom bon boo bot bou btb btc btd bte btm btn bto btt btu bub buc bud bue bum bun buo but buu c-- cbb cbc cbd cbe cbm cbn cbo cbt cbu ccb ccc ccd cce ccm ccn cco cct ccu cdb cdc cdd cde cdm cdn cdo cdt cdu ce- ceb cec ced cee cem cen ceo cet ceu cmb cmc cmd cme cmm cmn cmo cmt cmu cn- cnb cnc cnd cne cnm cnn cno cnt cnu co- cob coc cod coe com con coo cot cou ctb ctc ctd cte ctm ctn cto ctt ctu cub cuc cud cue cum cun cuo cut cuu dbb dbc dbd dbe dbm dbn dbo dbt dbu dcb dcc dcd dce dcm dcn dco dct dcu ddb ddc ddd dde ddm ddn ddo ddt ddu de- deb dec ded dee dem den deo det deu dmb dmc dmd dme dmm dmn dmo dmt dmu dnb dnc dnd dne dnm dnn dno dnt dob doc dod doe dom don doo dot dou dtb dtc dtd dte dtm dtn dto dtt dtu dub duc dud due dum dun duo dut ebb ebc ebd ebe ebm ebn ebo ebt ebu ec- ecb ecc ecd ece ecm ecn eco ect ecu ed- edb edc edd ede edm edn edo edt edu eeb eec eed eee eem een eeo eet em- emb emc emd eme emm emn emo emt emu en- enb enc end ene enm enn eno ent enu eo- eob eoc eod eoe eom eon eoo eot eou etb etc etd ete etm etn eto ett etu eu- eub euc eud eue eun eut m-o mbb mbc mbd mbe mbm mbo mbt mbu mc- mcb mcc mcd mce mcm mcn mco mct mcu mdb mdc mdd mde mdm mdn mdo mdt mdu meb mec med mee mem men meo met meu mmb mmc mmd mme mmm mmn mmo mmt mmu mnb mnc mne mnm mnn mno mnt mnu mob moc mod moe mom mon moo mot mou mtb mtc mtd mte mtm mtn mto mtt mtu mub muc mud mue mum mun mut muu nbb nbc nbd nbe nbm nbn nbo nbt nbu ncb ncc ncd nce ncm ncn nco nct ncu ndb ndc ndd nde ndm ndn ndo ndt ndu ne- neb nec ned nee nem nen neo net neu nmb nmc nmd nme nmm nmn nmo nmt nmu nnb nnc nne nnm nnn nno nnt nnu no- nob noc nod noe nom non noo not nou ntb ntc ntd nte ntm ntn nto ntt ntu nub nuc nud nue num nun nuo nut nuu ob- obb obc obd obe obm obn obo obt obu oc- ocb occ ocd ocm ocn oco oct ocu odb odc odd ode odm odn odo odt odu oeb oec oed oee oem oen oeo oet om- omb omc omd ome omm omn omo omt omu on- onb onc ond one onn ono ont onu oo- oob ooc ood oom oon ooo oot ot- otb otc otd ote otm otn oto ott otu ou- ouc oud oue oum oun ouo out tbb tbc tbd tbe tbm tbn tbo tbt tbu tcb tcc tcd tce tcm tcn tco tct tcu tdb tdc tdd tde tdm tdn tdo tdt tdu te- teb tec ted tee tem ten teo tet teu tmb tmc tmd tme tmm tmn tmo tmt tmu tnb tnc tnd tne tnm tnn tno tnt to- tob toc tod toe tom ton too tot tou ttb ttc ttd tte ttm ttn tto ttt ttu tub tuc tud tue tum tun tuo tut tuu ubb ubc ube ubn ubo ubt ubu ucb ucc ucd uce ucm ucn uco uct ucu udb udc udd ude udm udn udo udt udu ueb uec ued uee uem uen uet um- umb umc umd ume umm umn umo umt umu un- unb unc und une unm unn uno unt unu uob uoc uod uoe uom uon uoo uot utb utc utd ute utm utn uto utt utu uuc uue uum uun uut uuu