Given a value, return True if it's divisible by 6. Otherwise, return False. The digits parameter is a list containing the given value's digits in order, starting with the most significant (the first item in the list) and ending with the least significant (the last item in the list). Assume that each item in the list is positive and of type integer. For example, if the given value is 556, then digits will equal [5,5,6].