input: Write a function to implement a function f() that takes an argument n and prints the multiplication table of n.
  
  def f(n):
      for i in range(1, 11):
          print("{} * {} = {}".format(n, i, n*i))
  
  assert f(3)==None
  assert f(5)==None
  assert f(7)==None
  assert f(9)==None
  assert f(0)==None
output: def f(n):
      for i in range(1, 11):
          print("{} * {} = {}".format(n, i, n*i))