#include"stdio.h"
#define P 3.1415926
int main()
{
	int i,N,year;
	double x,y,r;
	scanf("%d",&N);
	for(i=0;i<N;i++)
	{
		scanf("%lf%lf",&x,&y);
		r=x*x+y*y;
		year=int(r*P/double(100))+1;
		printf("Property %d: This property will begin eroding in year %d.\n",i+1,year);
	}
	printf("END OF OUTPUT.\n");
	return 0;
}
//提交時用C++