bbb bbe bbg bbi bbk bbl be- beb bee beg bei bek bel bgb bge bgg bgi bgk bgl bi- bib bie big bii bik bil bkb bke bkg bkk bkl blb ble blg bli blk bll ebb ebe ebg ebi ebk ebl eeb eee eeg eek eel egb ege egg egi egl eib eie eig eii eik eil ekb eke ekg eki ekl elb ele elg eli elk ell gbe gbg gbi gbk gbl ge- geb gee geg gei gek gel ggb ggg ggi gib gie gig gii gik gil gkb glb gle glg gli glk gll ibb ibe ibg ibi ibk ibl ie- iee ieg iei iek iel igb ige igg igi igk igl iib iie iii iil ikb ike iki ikk ikl il- ilb ile ilg ili ilk ill kbb kbe kbi kbk kbl ke- keb kee keg kei kek kel kgb kgi kgl kib kie kig kii kik kil kkb kke kki kkk kkl kl- klb klg kli lbb lbe lbg lbi lbk lbl leb lee leg lei lek lel lgb lge lgg lgi lgk lgl lib lie lig lii lik lil lkb lkg lkl llb lle llg lli llk lll