A circuit with two outputs has to implement the following functions: f(a, b, c, d) = m(3, 4, 8, 10, 13) + D(2, 5, 9) g(a, b, c, d) = m(2, 3, 4, 10, 11, 15) + D(8, 12) Design the minimum-cost circuit and compare its cost with combined costs of two circuits that implement f and g separately. Assume that the input variables are available in both uncomplemented and complemented forms.