tieren89

first ot all ,celebrate to two group which have 6 in a group
. x; l8 |8 @# Y0 i, b9 Dand then celebrate again to 3 in a group from which more heaviertvb now,tvbnow,bttvb+ ~4 ~3 T1 l  w5 s# r" y. m% c7 T. ~
lastly, take two ping pongs from the heavier group and put in
" d) O/ }0 y5 j& A1 swhen there are same quality 5.39.217.77:8898% B7 H5 f* m& ^$ d0 ?9 @9 y
that's mean the third ping pong is different5.39.217.77:8898+ `5 u7 b* Q' u2 z+ u9 Y

/ t- g4 v: D5 U! D5.39.217.77:8898i got it in 1 minute