easy, one minutes i solve the problem
! A* e" u, e: y6 L$ F1 [divide into half, mean 6/ 6www3.tvboxnow.com4 F+ t/ o9 W) c: |7 F4 u2 T9 A
take the heavier 6 ping pong
# U+ q- F6 v% d" E$ X4 O+ O! Rdivide into 3/3, take the heavier 3tvb now,tvbnow,bttvb+ U/ Q. @! }3 u
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 |