easy, one minutes i solve the problem
0 H6 ^( Z1 C3 M8 o3 Q: s* W$ r* A! edivide into half, mean 6/ 68 G! h. S; y- ^' d; D# f3 g
take the heavier 6 ping pong5.39.217.765 \! S5 Z( ~: E5 b6 W0 n. h
divide into 3/3, take the heavier 3tvb now,tvbnow,bttvb# T7 m, j, K$ T
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 |