input: Write a function to check whether a number is even or odd. If the number is even, the function should print "Even", otherwise it should print "Odd".
  def is_even(n):
      if n % 2 == 0:
          print("Even")
      else:
          print("Odd")
  
  is_even(4)
  is_even(7)
  is_even(0)
  is_even(-3)
  is_even(-6)
output: def is_even(n):
      if n % 2 == 0:
          print("Even")
      else:
          print("Odd")