#include <stdio.h>
int main () {
	int n, i ,year;
	double x, y, r, s;
	scanf("%d", &n);
	for (i = 1; i <= n; i++) {
		scanf ("%lf%lf", &x, &y);
		r = x > y ? x : y;
		s = 3.1415926 * r * r / 2.;
		year = s / 50;
		printf ("Property %d: This property will begin eroding in year %d.\n", i, year + 1);
	}
	printf ("END OF OUTPUT.\n");
	return 0;
}