Find the minimum product of sums for
(a) F(a, b. c. d. e) =Σ n!( ! . 2.3.4. 5. 6. 25, 26, 27, 28, 29, 30. 31)
(b) F(a, b. c. d. e) = Σ m (1, 5. I 2. 13. I 4. 16, 17, 21, 23, 24, 30, 31) + Σ d(0, 2, 3, 4) 5.