bbb bbd bbe bbg bbl bdb bdd bde bdg bdl be- beb bed bee beg bel bgb bgd bge bgg bgl blb bld ble blg bll dbb dbd dbe dbg dbl ddb ddd dde ddg ddl de- deb ded dee deg del dgd dge dgg dgl dl- dlb dld dle dlg dll ebb ebd ebe ebg ebl ed- edb edd ede edg edl eeb eed eee eeg eel egb egd ege egg egl elb eld ele elg ell g-d gbd gbe gbg gbl gdb gdd gde gdl ge- geb ged gee geg gel ggb ggd ggg glb gld gle glg gll lbb lbd lbe lbg lbl ldb ldd lde ldg ldl leb led lee leg lel lgb lgd lge lgg lgl llb lld lle llg lll