#include <iostream>
#include <memory>
using namespace std;

struct lista{
    int value;
    unique_ptr <int> next;
    lista (int n){
        this->value = n;
        this->next = nullptr;
    }
};

void drukujListe(lista *head){
    if(head){
        if(head->next){
            cout << head->value << " " << head->next.get();
        }else cout << head->value;
    }else cout << "";
}

int main() {

    unique_ptr<lista> list = make_unique<lista>(1);

    drukujListe(list.get());

    return 0;
}