text: def fizzbuzz(x):
      if (x % 3 == 0) and (x % 5 != 0):
          return "Fizz"
      elif (x % 3 != 0) and (x % 5 ==0): 
          return "Buzz"
      elif (x % 3 == 0) and (x % 5 ==0):
          return '"FizzBuzz"'
      else:
          return x
  
  def test_answer3():
      assert fizzbuzz(3) == "Fizz"
      
  def test_answer5():
      assert fizzbuzz(5) == "Buzz"
      
  def test_answer15():
      assert fizzbuzz(15) == "FizzBuzz"
  
  def test_answerx():
      assert fizzbuzz(4) == 4
  