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回復第 1 帖由 MagicAndy 所發的帖子

44, find out which 4 have problem , (twice) and find out heavier or lighter5.39.217.76' D! @+ n& C2 \- D4 i& X2 q+ x7 W: z
4 divide by 2

回復第 1 帖由 MagicAndy 所發的帖子

pls tell me the answer
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