b-u bbb bbe bbg bbh bbu bbx be- beb bee beg beh beu bex bgb bge bgg bgh bgu bgx bhb bhe bhg bhh bhu bhx bub bue bug buh buu bux bxb bxx ebb ebe ebg ebh ebu ebx eeb eee eeg eex egb ege egg egh egu egx ehb ehe ehg ehh ehu eu- eub eue eug eux ex- exe exh exu exx gbe gbg gbh gbu gbx ge- geb gee geg geh geu gex ggb ggg ggh ggu ghb ghe ghg ghh gu- gub gue gug guu hbb hbe hbg hbh hbu hbx he- heb hee heg heh heu hex hgb hge hgg hgh hgu hhb hhe hhg hhh hhu hub hue hug huh huu hux ubb ube ubg ubh ubu ubx ueb uee ueg ueh ugb uge ugg ugh ugu ugx uhb uhe uhh uhu uue uug uuu uxb uxu xbe xbx xee xeg xeu xex xge xue xxx