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