#include <stdio.h>
#include <stdlib.h>
#include <conio.h>

typedef struct LIST {
    int a;
    struct LIST *next;
} list;

void add(list *temp, int item)
{
    list *node,
         *ptr = temp;

    if (!temp) {
        temp = malloc(sizeof(list));
        temp->a = item;
        temp->next = NULL;
    } else {
        node = (list *)malloc(sizeof(list));
        node->a = item;
        node->next = NULL;

        while (ptr->next != NULL) {
            ptr = ptr->next;
        }

        ptr->next = node;
    }
}

void print(list *temp)
{
    list *node = temp;

    while (node != NULL) {
        printf("%d ", node->a);
        node = node->next;
    }
}

int main()
{
    list *temp = NULL;
    int a;

    while (1) {
        scanf_s("%d", &a);

        if (a == -1)
            break;

        add(temp, a);
    }

    print(temp);

    _getch();

    return 0;
}