easy, one minutes i solve the problem
1 s0 ^8 G1 l+ h) t& j, G, B0 |divide into half, mean 6/ 6
# X7 u5 M- ~, Xtake the heavier 6 ping pong
$ z# Q; s' M& f" A' l! Ldivide into 3/3, take the heavier 3. {; V% f v* C3 S) H8 @
take 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 |