Let D and S be relations on A = {0, 1, 2, 3}.

• D = {(a, b) | b = (3a+1) mod 4}

• S = {(a, b) | b < a+1}

• D = {(0, 4), (1, 16), (2, 28), (3, 40)}

• S = {(1, 0), (2, 0), (2, 1), (3, 0), (3, 1), (3, 2), (4, 0), (4, 1), (4, 2), (4, 3)}

SD =???????????_{°}

Then find values of SD by writing all the intermediate steps_{°}