input: Write a function to determine whether a given number is even or odd. If the number is even, the function should print "Even". If the number is odd, the function should print "Odd".
  def is_even(n):
      if n % 2 == 0:
          print("Even")
      else:
          print("Odd")
  
  is_even(4)
  is_even(3)
  is_even(0)
  is_even(-5)
  
  assert is_even(4) == None
  assert is_even(3) == None
  assert is_even(0) == None
  assert is_even(-5) == None
output: def is_even(n):
      if n % 2 == 0:
          print("Even")
      else:
          print("Odd")