input: Write a function to determine if a given number is even. If the number is even, it should print "Even"; otherwise, it should print "Odd". The number will be positive.
  
  def is_even(n):
      if n % 2 == 0:
          print("Even")
      else:
          print("Odd")
  
  assert is_even(4)==print("Even")
  assert is_even(3)==print("Odd")
  assert is_even(0)==print("Even")
  assert is_even(7)==print("Odd")
output: def is_even(n):
      if n % 2 == 0:
          print("Even")
      else:
          print("Odd")