input: Write a function to compute the sum of two given variables and store the result in a third variable. The function should then print the result.
  assert compute_sum(5, 8)==None
  assert compute_sum(10, 20)==None
  assert compute_sum(0, 0)==None
  assert compute_sum(-5, 5)==None
  assert compute_sum(7, -3)==None
output: def compute_sum(a, b):
      result = a + b
      print(result)