A particle is displaced from the point whose position vector is \(5\vec i - 5\vec j - 7\vec k\) to the point whose position vector is \(6\vec i + 2\vec j - 2\vec k\) under the action of constant forces \(10\vec i - \vec j + 11\vec k,\;4\vec i + 5\vec j + 6\vec k\;and - 2\vec i + \vec j - 9\vec k.\) The total work done by the forces is