A solid lies between planes perpendicular to the x-axis at x = 0 and x = 19. The cross-sections perpendicular to the axis on the interval 0sxs 19 are squares with diagonals that run from the parabola y = - 2/x to the parabola y = 2/x. Find the volume of the solid. The volume of the solid is cubic units. (Type an exact answer, using n as needed.)

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