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5x 2 x 1 13

5x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 135x 2 x 1 13