Task Given three integers a ,b ,c, return the largest number obtained after inserting the following operators and brackets: +, *, () In other words , try every combination of a,b,c with [*+()] , and return the Maximum Obtained (Read the notes for more detail about it) Example With the numbers are 1, 2 and 3 , here are some ways of placing signs and brackets: 1 * (2 + 3) = 5 1 * 2 * 3 = 6 1 + 2 * 3 = 7 (1 + 2) * 3 = 9 So the maximum value that you can obtain is 9. Notes The numbers are always positive. The numbers are in the range (1  ≤  a, b, c  ≤  10). You can use the same operation more than once. It's not necessary to place all the signs and brackets. Repetition in numbers may occur . You cannot swap the operands. For instance, in the given example you cannot get expression (1 + 3) * 2 = 8.

def expression_matter(a, b, c):
  return max([a * b * c, a * (b + c), (a + b) * c, a + b + c])