def reversed_string(node):
    """
    Print out string representation of linked list but in reverse order
    :param node: value of head node, start of list
    :return: string: string of linked list, comma delimited
    """

    if node is not None and node.next_node is not None:  # not last element in linked list
        return reversed_string(node.next_node) + ", " + str(node.value)  # go through and append values in front of one another

    elif node is not None:  # last element in linked list, omit comma
        return str(node.value)

    return ''