input: Write a function to check whether a 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". The function should take one parameter, `n`, which is the number to be checked.
  
  assert is_even(4)==print("Even")
  assert is_even(3)==print("Odd")
  assert is_even(0)==print("Even")
  assert is_even(-1)==print("Odd")
  assert is_even(-2)==print("Even")
  
output: def is_even(n):
      if n % 2 == 0:
          print("Even")
      else:
          print("Odd")