1. divide 6 and 6, both sides will not equal5.39.217.776 ?; n; n: W% ~- b
2. take any side of the 6, divide then 3 and 3, again both sides will not equal公仔箱論壇. y) V2 J) b8 y0 m$ x7 \
3. take any 2 and weigh them 8 h# y9 x0 w- p3 \if they equal, the one left is the ball.