#include<stdio.h>
#include<math.h>
main()
{ double x,y,n;int t,i=0;
  scanf("%d",&t);
  for(;t--;)
    {scanf("%lf%lf",&x,&y);
     n=(x*x+y*y)*3.14/100;i++;
     printf("Property %d: This property will begin eroding in year %.0lf.\n",i,ceil(n));}
     printf("END OF OUTPUT.\n");
}