b-u bbb bbe bbg bbi bbk bbl bbt bbu be- beb bee beg bei bek bel bet beu bez bgb bge bgg bgi bgk bgl bgt bgu bgz bi- bib bie big bii bik bil bit biu biz bkb bke bkg bkk bkl bkt blb ble blg bli blk bll blt blu blz btb bte btg bti btk btl btt btu btz bub bue bug bui buk bul but buu buz bze bzu bzz ebb ebe ebg ebi ebk ebl ebt ebu eeb eee eeg eek eel eet egb ege egg egi egl egt egu eib eie eig eii eik eil eit eiu ekb eke ekg eki ekl ekt eku elb ele elg eli elk ell elt elu elz etb ete etg eti etk etl ett etu etz eu- eub eue eug eui eul eut eze ezz gbe gbg gbi gbk gbl gbt gbu gbz ge- geb gee geg gei gek gel get geu gez ggb ggg ggi ggt ggu ggz gib gie gig gii gik gil git giu giz gkb gkt glb gle glg gli glk gll glt glu glz gtb gte gtg gti gtk gtl gtt gtu gu- gub gue gug gui guk gul gut guu guz gzu ibb ibe ibg ibi ibk ibl ibt ibu ibz ie- iee ieg iei iek iel iet igb ige igg igi igk igl igt igu iib iie iii iil iit iiu ikb ike iki ikk ikl ikt iku il- ilb ile ilg ili ilk ill ilt ilu ilz itb ite itg iti itk itl itt itu itz iu- iub iue iug iui iut iuz ize izi izu izz k-t k-z kbb kbe kbi kbk kbl kbu kbz ke- keb kee keg kei kek kel ket kez kgb kgi kgl kgu kib kie kig kii kik kil kit kiu kiz kkb kke kki kkk kkl kkt kku kl- klb klg kli klt klu klz ktb kte ktg ktk ktl ktt ktu kub kue kug kui kuk kul kut kuu lbb lbe lbg lbi lbk lbl lbt lbu leb lee leg lei lek lel let leu lez lgb lge lgg lgi lgk lgl lgt lgu lib lie lig lii lik lil lit liu liz lkb lkg lkl lkt llb lle llg lli llk lll llt llu llz ltb lte ltg lti ltk ltl ltt ltu ltz lub lue lug lui luk lul lut luu luz lzi lzu tbb tbe tbg tbi tbk tbl tbt tbu tbz te- teb tee teg tei tek tel tet teu tez tgb tge tgg tgi tgk tgl tgt tgu tgz tib tie tig tii tik til tit tiu tiz tkb tke tkg tkk tkl tkt tkz tle tlg tli tlk tll tlt tlu tlz ttb tte ttg tti ttk ttl ttt ttu tub tue tug tui tuk tul tut tuu tuz tze tzu ubb ube ubg ubi ubk ubl ubt ubu ueb uee ueg uei uel uet ugb uge ugg ugi ugk ugl ugt ugu uib uie uig uii uil uit uiu ukb uke uki ukk ukl uku ukz ulb ule ulg uli ulk ull ult ulu utb ute uti utk utl utt utu utz uue uug uut uuu uzb uzi uzu z-g zbb zbl zbt zeb zee zek zel zet zez zgb zgg zgi zib zie zig zik zil zit ziz zlt zte ztl zub zug zui zuk zul zut zuz zzt zzz