input: Write a function to print numbers between 300 and 500 that are divisible by both 5 and 6.
  assert find_divisible_numbers()==[300, 330, 360, 390, 420, 450, 480]
output: def find_divisible_numbers():
      return [num for num in range(300, 501) if num % 5 == 0 and num % 6 == 0]