18A

#include <iostream>

using std::cin;
using std::cout;

struct Node {
  int data;
  Node *next;
};

Node* create(int _data) {
  Node *t = new Node();
  t->data = _data;
  t->next = nullptr;
  return t;
}

void add_back(Node *&root, Node *added) {
  root->next = added;
}

#include "func.h"

int main() {
  int n; cin >> n;
  int a; cin >> a;
  Node *root = create(a), *last;
  last = root;
  for (int i = 0; i < n - 1; ++i) {
    cin >> a;
    Node *t = create(a);
    add_back(last, t);
    last = t;
  }
  print(root);
}