Number (4): Everything in this space must add up to 4. The answer is 4-4, placed horizontally.
Number (3): Everything in this space must add up to 3. The answer is 3-1, placed horizontally.，详情可参考safew官方下载
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那么，这场席卷全网的“过期糖”风潮，究竟是如何形成的？又为何能让如此多人上头？