#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
typedef struct LIST
{
	int a;
	struct LIST *next;
}list;
list *add(list *temp, int item)
{
	list *t;
	if (temp == NULL)
	{
		temp = (list *)malloc(sizeof(list));
		temp->a = item;
		temp->next = NULL;
	}
	else
	{
		while (temp->next != NULL)
		{
			temp = temp->next;
		}

		t = (list *)malloc(sizeof(list));
		t->a = item;
		t->next = NULL;
		temp->next = t;
	}
	return temp;
}
void print(list *temp)
{
	while (temp != NULL)
	{
		printf("%d ", temp->a);
		temp = temp->next;
	}
}
int main()
{
	list *temp = NULL;
	int a;
	while (1)
	{
		scanf_s("%d", &a);
		if (a == -1)
			break;
		add(temp, a);
	}
	print(temp);
	_getch();
}