1 weight 6 ping pongs with another 6 ping pongs. see which side is heavier
4 S7 B2 F& A/ v7 G0 F& ^/ Vtvb now,tvbnow,bttvb2 spilt the heavier side ping pongs in half and weight against each othertvb now,tvbnow,bttvb, a# o+ ?5 s5 K3 F" `
3 weiht either ping pongs one on one then you will know which is the heavy one. |