i find one solution that is similar( ]2 o6 }/ h$ s5 g4 H3 j- P
but i can't specify the heavier one is abnormal or the lighter one is abnormal when the case that has only two balls left....
. U+ a; V! z& n) C7 O4 c& r$ jtvb now,tvbnow,bttvbmaybe there is a better one, let me see sin |