bbbb bbeb bbfc bcbc bccc bcec bcfc bebb bebe beck beeb beef beej beek befe beff beke bjcc bjec bjfe cbbc cbcc cbce cbec cbee cbef cbfb cbfc cbkj ccbc cccb cccc cccf ccee ccfc ccff cec- cece ceeb ceec cef- cefc cejc ceke cfbc cfcb cfcf cffb cjbc cjbk cjcb cjcj cjfb ckbc ckbe ckck ebbc ebcc ebfc ecbc ecbe eccb eccc ecce ecef ecfc eeee eefe eeke efke ekeb ekek ekfc f--k fccf fccj fece feck feeb feek fefc fefe feff feke ffcc ffee ffff jcbc jccc jebb jebe jefe jeff jeke jjcc kbbb kbbc kbbe kbbf kbbk kbcb kbce kbck kbeb kbec kbee kbef kbek kbfb kbfc kbff kbfk kbjc kbjk kbkb kbkf kbkk kcbc kcbf kcbk kccb kccc kcck kceb kcec kcee kcfb kcfc kcfj kcjb kcjc kcjf kcjj kcjk kckc kckf kckj kckk kebb kebc kebe keck keef keek kefb kefc keff kejb kejj kekb kekc keke kfbc kfbk kfcf kfeb kffb kfff kffk kfjb kfjc kfjk kfkb kjbb kjcb kjcc kjce kjck kjee kjef kjff kjfk kjjf kjjj kjjk kjke kjkj kjkk kkbb kkbe kkbj kkcb kkcj kkck kkjb kkjk kkkj kkkk