first, compare 6 and another 6. they must have difference. 5.39.217.77' S" b `$ s, u) a* U6 b! q+ {7 l
second, divide those 6 heavier one into two, each has 3. u will find difference again.
; c5 P& e: g3 x) ?. h" M# Lthird time, if u put 2 and they are equal, u will know the different one.
7 U! D) m1 O4 m, Z5.39.217.77so easy.... |