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

struct NODE
{
	int data;
	struct NODE *link;
};

main()
{
	struct NODE *first, *current, *latest;
	int i, j=2;
	first = (struct NODE *)malloc(sizeof(struct NODE));
	first -> link=NULL;
	current = first;

	while(scanf("%d", &(current->data)) != EOF)
	{
		latest = (struct NODE *)malloc(sizeof(struct NODE));
		latest->link = current;
		current=latest;
	}

	for(i=0; i<2; i++)
	{
		if(current->link != NULL)
		{
			current = current->link;
		}
	}

	printf("Data Position\tValue\n");
	
	while(current->link != NULL)
	{
		printf("%d\t\t%d\n", j, current->data);
		for(i=0; i<3; i++)
		{
			if(current->link != NULL)
			{
				current = current->link;
			}
		}
		j+=3;
	}
	printf("\n");
}