input: Write a python function to sum two integers provided as input arguments, handling exceptions for non-integer inputs.
  assert main(3, 5) == 'Sum: 8'
  assert main(10, -2) == 'Sum: 8'
  assert main('a', 5) == 'Input arguments must be integers'
  assert main(4, 'b') == 'Input arguments must be integers'
output: def main(a, b):
      try:
          return f"Sum: {a + b}"
      except TypeError:
          return "Input arguments must be integers"