Let x and y be two n-bit numbers, where n is divisible by 3. Let XL, XM and XR consist of the first third, middle third, and final third of the digits of X, x = 2 3 XL + 23 XM + XR, and define yl, YM, and YR analogously. so that 2n (a) (3 points) Express xy in terms of XL, XM , XR, YL, YM , YR. Simplify your