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. If the number is zero, print "Even".
  def is_even(n):
      if n % 2 == 0:
          print("Even")
      else:
          print("Odd")
  assert is_even(4)=="Even"
  assert is_even(7)=="Odd"
  assert is_even(0)=="Even"
  assert is_even(-2)=="Even"
  assert is_even(-5)=="Odd"
output: def is_even(n):
      if n % 2 == 0:
          print("Even")
      else:
          print("Odd")