input: Write a function to compare two numbers and return the larger one or a message if they are equal.
  assert compare_numbers(12, 44) == 44
  assert compare_numbers(44, 12) == 44
  assert compare_numbers(44, 44) == "Both numbers are equal"
output: def compare_numbers(a, b):
      if a > b:
          return a
      elif b > a:
          return b
      else:
          return "Both numbers are equal"