#include<stdio.h>
#include<math.h>

int main()
{
	int i,n;
	float pi,x,y,years;
	scanf("%d", &n);
	pi = acos(-1);

	for(i=1; i<=n; i++)
	{
		scanf("%f%f",&x,&y);

	    years = pi*(x*x + y*y)/100;

	    printf("Property %d: This property will begin eroding in year %d.\n",i,(int)years+1);
	}
	printf("END OF OUTPUT.\n");

    return 0;
}