input: Write a python function to classify data into two classes based on whether the values are even or odd.
  assert classify_data([1, 2, 3, 4, 5, 6]) == ([2, 4, 6], [1, 3, 5])
  assert classify_data([10, 15, 20, 25, 30, 35]) == ([10, 20, 30], [15, 25, 35])
  assert classify_data([7, 8, 9, 10, 11, 12]) == ([8, 10, 12], [7, 9, 11])
output: def classify_data(data):
      evens = [x for x in data if x % 2 == 0]
      odds = [x for x in data if x % 2 != 0]
      return evens, odds