b-u bbb bbd bbe bbg bbu bbx bdb bdd bde bdg bdu bdx be- beb bed bee beg beu bex bgb bgd bge bgg bgu bgx bub bud bue bug buu bux bxb bxd bxx dbb dbd dbe dbg dbu dbx ddb ddd dde ddg ddu ddx de- deb ded dee deg deu dex dgd dge dgg dgu dub dud due dug dux dxd dxx ebb ebd ebe ebg ebu ebx ed- edb edd ede edg edu edx eeb eed eee eeg eex egb egd ege egg egu egx eu- eub eud eue eug eux ex- exd exe exu exx g-d gbd gbe gbg gbu gbx gdb gdd gde gdu gdx ge- geb ged gee geg geu gex ggb ggd ggg ggu gu- gub gud gue gug guu ubb ube ubg ubu ubx udb udd ude udg udu udx ueb ued uee ueg ugb uge ugg ugu ugx uue uug uuu uxb uxu xbe xbx xdb xde xed xee xeg xeu xex xge xue xxx