#include <iostream>
using namespace std;

struct Elem {
    long long value;
    Elem *next;
};
class List
{
    Elem *begin;
    Elem *first;
public:
    List() {
        begin = NULL;
        first = NULL;
    }
    ~List() {
        Elem *pt;
        while (first != NULL) {
            pt = first;
            first = first->next;
            delete pt;
        }
    }
    void push(long long value) {
        Elem *pt = new Elem;
        pt->value = value;
        pt->next = NULL;
        if (begin == NULL)
            begin = pt;
        begin->next = pt;
        if (first == NULL)
            first = begin;
        begin = begin->next;
    }
    long long pop() {
        if (!first)
            return -1;
        Elem *pt = first;
        int value = pt->value;
        first = pt->next;
        delete pt;
        return value;
    }
    bool empty() {
        if (first == NULL)
            return true;
        else
            return false;
    }
};

int main() {
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
    long long tmp;
    List list;
    while (cin >> tmp) {
        list.push(tmp);
    }
    while (!list.empty())
        cout << list.pop() << " ";
    return 0;
}