first ot all ,celebrate to two group which have 6 in a group公仔箱論壇$ P/ ^2 m$ }7 e3 \7 Z* D7 v
and then celebrate again to 3 in a group from which more heavier+ {. i ^) _4 s1 q2 i' Y3 K' d
lastly, take two ping pongs from the heavier group and put in9 _3 V V# x# Z& s; N2 |
when there are same quality
# r, }# a+ j* S1 h2 R5 n qthat's mean the third ping pong is different+ m3 L5 ~' d h
, ]! ?2 Y8 O; t! W; Q+ d( Q5 e
i got it in 1 minute |