input: Write a function to compute the sum of two variables and store the result in a third variable. The function should print the result.
  assert compute_sum(5, 8) == 13
  assert compute_sum(10, 20) == 30
  assert compute_sum(-3, 3) == 0
  assert compute_sum(0, 0) == 0
  assert compute_sum(7, -7) == 0
output: def compute_sum(a, b):
      result = a + b
      print(result)
      return result