#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));
		current->link = latest;
		current = latest;
		current->link=NULL;
	}

	current = first->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");
}