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F 2x 2 1 x 4

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