first ot all ,celebrate to two group which have 6 in a group5.39.217.77+ J) t# Y) H7 } `& b
and then celebrate again to 3 in a group from which more heavier1 I) Y, u# m/ }: O4 P8 O8 e
lastly, take two ping pongs from the heavier group and put in5.39.217.77, R; H% a1 I8 ~0 \' v- [3 U. c7 H C$ o
when there are same quality / p2 m+ l v- r
that's mean the third ping pong is different 5 F4 E3 X+ T" |. ~7 v# V: R" \5.39.217.77 6 z( y; R0 x5 g; v& ^! j6 c/ W+ ci got it in 1 minute