input: Write a function to check whether a number is even or odd and print "Even" if the number is even and "Odd" if the number is odd.
  def is_even(n):
      if n % 2 == 0:
          print("Even")
      else:
          print("Odd")
          
  assert is_even(4) == None
  assert is_even(5) == None
output: def is_even(n):
      if n % 2 == 0:
          print("Even")
      else:
          print("Odd")