#include	<stdio.h>
#define	NM	10			/* Maximum number of atoms */
main()
{
	int	i, natom;
	double	x[NM], y[NM], vx[NM], vy[NM];
		/* x[i] : x coordinate of i atom */
		/* y[i] : y coordinate of i atom */
		/* vx[i] : x velocity of i atom */
		/* vy[i] : y velocity of i atom */

	natom = 10;		/* The number of atoms */
	for (i = 0; i < natom; i++) {
		/* Data input */
		scanf("%lf%lf%lf%lf", &x[i], &y[i], &vx[i], &vy[i]);
		/* Data output */
		printf("%2d %15.8e %15.8e %15.8e %15.8e\n", 
			i, x[i], y[i], vx[i], vy[i]);
	}
}