| the first time u sprate 6 balls ,and see which way is different.Then u tke out those 6 balls which is different and sprate them in 3 balls each side, then u see which way in different.Finally u take out those 3 balls from the different side and put one ball on each side,if those 2 balls are the same then the third one is different,if one of the ball on each side is down then it is the one we are lokking for... |
發表於 2008-9-16 03:49 AM
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發表於 2008-9-16 08:42 AM
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