input: Write a python function to separate even and odd numbers from a given list.
  assert separate_even_odd([1, 2, 3, 4, 5, 6, 7, 8]) == ([2, 4, 6, 8], [1, 3, 5, 7])
  assert separate_even_odd([10, 15, 20, 25, 30, 35]) == ([10, 20, 30], [15, 25, 35])
  assert separate_even_odd([11, 22, 33, 44, 55, 66]) == ([22, 44, 66], [11, 33, 55])
output: def separate_even_odd(numbers):
      even_numbers = [num for num in numbers if num % 2 == 0]
      odd_numbers = [num for num in numbers if num % 2 != 0]
      return (even_numbers, odd_numbers)