input: Write a python function to calculate the sum of all elements in a list using the sum() function.
  assert calculate_sum([1, 2, 3, 4, 5, 6]) == 21
  assert calculate_sum([10, 20, 30, 40]) == 100
  assert calculate_sum([0, -1, 1, -2, 2]) == 0
output: def calculate_sum(lst):
      return sum(lst)