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有一张正方形的藏宝图,在它上面叠放了7张与之大小、形状相同的正方形纸片,并最终形成了如右图所示的一个大正方形。显然,标记着数字8的纸片是最后放
There is a square treasure map, on top of it stacked 7 with the same size and shape of the square paper, and eventually formed as shown in a large square. Obviously, the number marked 8 is the last piece of paper