^{Apply dynamic programming and find where to parenthesize a chain of matrices so that finding their product will require only minimum number of scalar multiplications. Print the parenthesized chain of matrices. For example, let the 4 matrices be A(5x3), B(3x2), C(2x3) and D(3x4), find the product of the four matrices with parentheses attached. Print the parenthesized chain of matrices.}