#include <iostream>

using namespace std;

class Node {
    public:
        const int element;
        Node* next;
};

class List {
    public:
        List(initializer_list<int> l);
        int size() { return size_; }
        void sort();
        void print();
    private:
        Node * head{};
        int size_{};
};

List::List(initializer_list<int> l) {
    for (auto ele : l) {
        head = new Node{ele, head};
        size_++;
    }
}

void List::print() {
    Node * temp = head;
    cout << "( ";
    while (temp != nullptr) {
        cout << temp -> element << " ";
        temp = temp -> next;
    }
    cout << ")";
}

void List::sort() {
    /* insert your code here */
}

int main() {
    List l{8, 2, 4, 1, 5};
    cout << "Before sort ";
    l.print();
    cout << endl;

    l.sort();
    cout << "After sort ";
    l.print();
    cout << endl;
}