input: Write a python function to print even numbers from a given range.
  assert print_even_numbers(3, 11) == [4, 6, 8, 10]
  assert print_even_numbers(1, 5) == [2, 4]
  assert print_even_numbers(10, 20) == [10, 12, 14, 16, 18, 20]
output: def print_even_numbers(start, end):
      return [num for num in range(start, end + 1) if num % 2 == 0]