Two beams of light travel parallel to each other and hit rig

Two beams of light travel parallel to each other and hit right at the center of two surfaces of a cubic lens with a 45 degree incident angle. The lens has a refractive index n = 2. Sketch their passages in the lens when they hit a second surface. Will the two beams change their propagation direction once they arc refracted out at the points where they hit the second surface? If so. will they be closer to each other or farther away from each other? If not, what arc the directions of the two beams once they are refracted out of the lens? Explain your answers, Is total internal reflection possible when the two beams hit a second surface? Will the answer change if n has a different value? Explain your answers.

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