easy, one minutes i solve the problem
3 J" |. D3 [1 M; Q: fdivide into half, mean 6/ 65.39.217.761 }- ]5 k. g/ ]+ p+ Q& o
take the heavier 6 ping pongtvb now,tvbnow,bttvb, T4 O9 g+ Q. Q( u, Q' }: f0 C( v/ M
divide into 3/3, take the heavier 3% d: L& `; g$ l! W$ c; l% h
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 |