#include <stdio.h>

#define FNUMS 10

int
main(void)
{
	int i;

	float media, totale = 0;

	float farray[FNUMS];

	for (i = 0; i < FNUMS; i++) {
		scanf("%f", &farray[i]);
		totale += farray[i];
	}

	media = totale * 1.0 / FNUMS;
	printf("Media = %.2f\n\n", media);

	for (i = (FNUMS - 1); i >= 0; i--)
		printf("%.1f\t\t%.2f\n", farray[i], farray[i] - media);

	return 0;
}