first, compare 6 and another 6. they must have difference. 5.39.217.76# z% N ?; u Y+ l x
second, divide those 6 heavier one into two, each has 3. u will find difference again.
q+ c6 G" B0 @6 h4 C7 Y公仔箱論壇third time, if u put 2 and they are equal, u will know the different one.
: E) g& ^6 f. N4 c1 Ktvb now,tvbnow,bttvbso easy.... |