#include <stdio.h>
#include <stdlib.h>
#define pi 3.14159265358979323846264338327950288 
int k=0;
double r;
int n; 
double sqare; 
int main( )
{
     int i; 
     float x,y; 
     scanf("%d",&n);
     for (i=1;i<=n;i++)
       {
           scanf("%f%f",&x,&y);
           r=x*x+y*y;
           k=0; 
		   sqare=0.0; 
           while (r>sqare)
           {
              sqare=1.0; 
               k++;
               sqare=sqare*100*k/pi;
           } 
           printf("Property %d: This property will begin eroding in year %d.\n",i,k); 
       }
     printf("END OF OUTPUT.\n");
     return 0;
}