#include<stdio.h>
int main()
{
 int i,n;
 double a,b;
 scanf("%d",&n);
 for(i=1;i<n+1;i++)
 {
  scanf("%lf%lf",&a,&b);
  if(b>=0&&a!=0)
	{
		printf("Property %d: This property will begin eroding in year %d.\n",i,(int)(3.14159265*(a*a+b*b)/100+1));
	 }
 }
 printf("END OF OUTPUT.");	
 return 0;
 }