+-----+-----+-----+-----+-----+-----+-----+-----+
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+=====+-----+-----+=====+=====+-----+-----+=====+
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+=====+-----+-----+-----+-----+-----+-----+=====+
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+=====+=====+=====+=====+=====+=====+=====+=====+
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+-----+-----+-----+=====+=====+-----+-----+-----+
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+-----+-----+-----+-----+-----+-----+-----+-----+