1. divide 6 and 6, both sides will not equal * h- w/ E3 R4 O5 l6 q5.39.217.77:88982. take any side of the 6, divide then 3 and 3, again both sides will not equal4 F+ K; |" ?; G
3. take any 2 and weigh them + j" q/ s1 Y+ i3 C6 \公仔箱論壇if they equal, the one left is the ball.