input: Write a python function to print all numbers between 2 and 50 that are divisible by both 2 and 3.
  assert divisible_by_2_and_3() == [6, 12, 18, 24, 30, 36, 42, 48]
output: def divisible_by_2_and_3():
      return [i for i in range(2, 51) if i % 2 == 0 and i % 3 == 0]