input: Write a python function to convert a given number to its string representation and print it.
  assert user_number(5) == "The Python equivalent of 5 is 5"
  assert user_number(123) == "The Python equivalent of 123 is 123"
  assert user_number(0) == "The Python equivalent of 0 is 0"
output: def user_number(n):
      return f"The Python equivalent of {n} is {str(n)}"