Design a circuit with one output f and four inputs x1, x0, y1, andy0. Let X = x1x0 be a 2 digit binary number. X can have fourpossible valuations (X=x1x0), namely, 0 = 00, 1 =01, 2 =10, and 3 =11. Similarly, let Y = y1y0 represent another number with the samevalues as X. The output f should be equal to 1 if the numbers represented by X and Y are equal, otherwise f is equal to 0.