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