#include <iostream>
#include <vector>

using namespace std;

struct ListNode {
      int val;
      ListNode *next;
      ListNode(int x) : val(x), next(NULL) {}
};

class Solution {
public:
    vector<int> reversePrint(ListNode* head) {

    }
};

int main(int, char**) {
    std::cout << "Hello, world!\n";
}