first ot all ,celebrate to two group which have 6 in a group
9 P5 l, E/ E9 a- [1 @& O" Y6 L6 }4 jand then celebrate again to 3 in a group from which more heavier
+ a0 e: B. `) ^ j$ A, }lastly, take two ping pongs from the heavier group and put in
! J, ]( q( n1 b/ Ytvb now,tvbnow,bttvbwhen there are same quality
. {/ d2 |8 d6 Q2 t5 }0 ?9 `/ xthat's mean the third ping pong is different
$ M+ Z( P0 Z, n: z0 Ftvb now,tvbnow,bttvb
! x. c& h4 k; ftvb now,tvbnow,bttvbi got it in 1 minute |