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F x 3 2x 1 4

F x 3 2x 1 4F x 3 2x 1 4F x 3 2x 1 4F x 3 2x 1 4F x 3 2x 1 4F x 3 2x 1 4
F x 3 2x 1 4F x 3 2x 1 4F x 3 2x 1 4F x 3 2x 1 4F x 3 2x 1 4F x 3 2x 1 4
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