input: 
  def f(n):
      """
      Implement a function that takes an argument n and prints the multiplication table of n.
      >>> f(5)
      5 * 1 = 5
      5 * 2 = 10
      5 * 3 = 15
      5 * 4 = 20
      5 * 5 = 25
      5 * 6 = 30
      5 * 7 = 35
      5 * 8 = 40
      5 * 9 = 45
      5 * 10 = 50
      """
      for i in range(1, 11):
          print("{} * {} = {}".format(n, i, n*i))
output:     for i in range(1, 11):
          print("{} * {} = {}".format(n, i, n*i))