1. divide 6 and 6, both sides will not equal) [5 x8 d/ i2 D J
2. take any side of the 6, divide then 3 and 3, again both sides will not equal & L# T. X; y3 q2 j1 U3. take any 2 and weigh them & }* [+ t0 b. }) k" E# Z公仔箱論壇if they equal, the one left is the ball.