b-u bbb bbe bbg bbl bbn bbs bbt bbu be- beb bee beg bel ben bes bet beu bgb bge bgg bgl bgn bgs bgt bgu blb ble blg bll bln bls blt blu bnb bne bng bnl bnn bns bnt bnu bsb bse bsg bsl bsn bss bst bsu btb bte btg btl btn bts btt btu bub bue bug bul bun bus but buu ebb ebe ebg ebl ebn ebs ebt ebu eeb eee eeg eel een ees eet egb ege egg egl egn egs egt egu elb ele elg ell eln els elt elu en- enb ene eng enl enn ens ent enu es- esb ese esg esl esn ess est esu etb ete etg etl etn ets ett etu eu- eub eue eug eul eun eus eut gbe gbg gbl gbn gbs gbt gbu ge- geb gee geg gel gen ges get geu ggb ggg ggn ggs ggt ggu glb gle glg gll gln gls glt glu gnb gne gnl gnn gns gnt gnu gsb gse gsg gsl gsn gss gst gsu gtb gte gtg gtl gtn gts gtt gtu gu- gub gue gug gul gun gus gut guu lbb lbe lbg lbl lbs lbt lbu leb lee leg lel len les let leu lgb lge lgg lgl lgn lgs lgt lgu llb lle llg lll lln lls llt llu lnb lne lng lnl lnn lns lnt lnu lsb lse lsg lsl lsn lss lst lsu ltb lte ltg ltl lts ltt ltu lub lue lug lul lun lus lut luu nbb nbe nbg nbl nbn nbs nbt nbu ne- neb nee neg nel nen nes net neu ngb nge ngg ngl ngn ngs ngt ngu nlb nle nlg nll nln nls nlt nlu nnb nne nng nnl nnn nns nnt nnu nsb nse nsg nsl nsn nss nst nsu ntb nte ntg ntn nts ntt ntu nub nue nug nul nun nus nut nuu sbb sbe sbg sbl sbn sbs sbt sbu se- seb see seg sel sen ses set seu sgb sge sgg sgl sgn sgs sgt sgu slb sle slg sll sln sls slt slu snb sne sng snl snn sns snt snu ss- ssb sse ssg ssl ssn sss sst ssu stb ste stg stl stn sts stt stu sub sue sug sul sun sus sut suu tbb tbe tbg tbl tbn tbs tbt tbu te- teb tee teg tel ten tes tet teu tgb tge tgg tgl tgn tgs tgt tgu tle tlg tll tln tls tlt tlu tnb tne tng tnl tnn tns tnt tsb tse tsg tsl tsn tss tst tsu ttb tte ttg ttl ttn tts ttt ttu tub tue tug tul tun tus tut tuu ubb ube ubg ubl ubn ubs ubt ubu ueb uee ueg uel uen ues uet ugb uge ugg ugl ugn ugs ugt ugu ulb ule ulg ull uln uls ult ulu un- unb une ung unl unn uns unt unu usb use usg usl usn uss ust usu utb ute utl utn uts utt utu uue uug uun uus uut uuu