input: Write a python function to add two numbers received from a form and return the result as a formatted string.
  assert add(3, 5) == "The result of 3 + 5 is 8"
  assert add(10, 20) == "The result of 10 + 20 is 30"
  assert add(-1, 1) == "The result of -1 + 1 is 0"
output: def add(a, b):
      result = a + b
      return f"The result of {a} + {b} is {result}"