input: Write a python function to calculate the sum of a list of numbers using an optimized approach.
  assert sum_list_optimized([1, 2, 3, 4, 5]) == 15
  assert sum_list_optimized([0, -1, 1, -2, 2]) == 0
  assert sum_list_optimized([10, 20, 30, 40, 50]) == 150
output: def sum_list_optimized(numbers):
      return sum(numbers)