easy, one minutes i solve the problem |' W% n6 Z. F/ ]7 i, I
divide into half, mean 6/ 6
4 a* Y/ m! G6 ]- otake the heavier 6 ping pong
! |" Y8 z& y3 @! m; t5 i+ F1 Stvb now,tvbnow,bttvbdivide into 3/3, take the heavier 3
) T [; v' `( w) atake the the other 3 that have the equal weight, switch each to measure, the most important things is labeling the ping pong so that we can recognize |